Update to kernel headers v4.9.3.

Test: Built arm, arm64, x86, x86_64 targets.
Test: Booted on angler, and ran bionic unit tests (32 bit and 64 bit).

Change-Id: I14a8dcbea11b41f83431eabed6590cd25af07b1d
diff --git a/libc/kernel/uapi/asm-generic/unistd.h b/libc/kernel/uapi/asm-generic/unistd.h
index a77e211..ef9f56c 100644
--- a/libc/kernel/uapi/asm-generic/unistd.h
+++ b/libc/kernel/uapi/asm-generic/unistd.h
@@ -388,151 +388,154 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_preadv2 286
 #define __NR_pwritev2 287
-#undef __NR_syscalls
-#define __NR_syscalls 288
+#define __NR_pkey_mprotect 288
+#define __NR_pkey_alloc 289
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define __NR_pkey_free 290
+#undef __NR_syscalls
+#define __NR_syscalls 291
 #ifdef __ARCH_WANT_SYSCALL_NO_AT
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_open 1024
 #define __NR_link 1025
 #define __NR_unlink 1026
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_mknod 1027
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_chmod 1028
 #define __NR_chown 1029
 #define __NR_mkdir 1030
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_rmdir 1031
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_lchown 1032
 #define __NR_access 1033
 #define __NR_rename 1034
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_readlink 1035
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_symlink 1036
 #define __NR_utimes 1037
 #define __NR3264_stat 1038
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR3264_lstat 1039
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #undef __NR_syscalls
 #define __NR_syscalls (__NR3264_lstat + 1)
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #ifdef __ARCH_WANT_SYSCALL_NO_FLAGS
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_pipe 1040
 #define __NR_dup2 1041
 #define __NR_epoll_create 1042
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_inotify_init 1043
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_eventfd 1044
 #define __NR_signalfd 1045
 #undef __NR_syscalls
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_syscalls (__NR_signalfd + 1)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif
 #if (__BITS_PER_LONG == 32 || defined(__SYSCALL_COMPAT)) && defined(__ARCH_WANT_SYSCALL_OFF_T)
 #define __NR_sendfile 1046
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_ftruncate 1047
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_truncate 1048
 #define __NR_stat 1049
 #define __NR_lstat 1050
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_fstat 1051
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_fcntl 1052
 #define __NR_fadvise64 1053
 #define __ARCH_WANT_SYS_FADVISE64
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_newfstatat 1054
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __ARCH_WANT_SYS_NEWFSTATAT
 #define __NR_fstatfs 1055
 #define __NR_statfs 1056
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_lseek 1057
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_mmap 1058
 #undef __NR_syscalls
 #define __NR_syscalls (__NR_mmap + 1)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #ifdef __ARCH_WANT_SYSCALL_DEPRECATED
 #define __NR_alarm 1059
 #define __ARCH_WANT_SYS_ALARM
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_getpgrp 1060
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __ARCH_WANT_SYS_GETPGRP
 #define __NR_pause 1061
 #define __ARCH_WANT_SYS_PAUSE
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_time 1062
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_TIME
 #define __NR_utime 1063
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __ARCH_WANT_SYS_UTIME
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_creat 1064
 #define __NR_getdents 1065
 #define __ARCH_WANT_SYS_GETDENTS
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_futimesat 1066
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_select 1067
 #define __ARCH_WANT_SYS_SELECT
 #define __NR_poll 1068
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_epoll_wait 1069
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_ustat 1070
 #define __NR_vfork 1071
 #define __NR_oldwait4 1072
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_recv 1073
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_send 1074
 #define __NR_bdflush 1075
 #define __NR_umount 1076
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __ARCH_WANT_SYS_OLDUMOUNT
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_uselib 1077
 #define __NR__sysctl 1078
 #define __NR_fork 1079
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #undef __NR_syscalls
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_syscalls (__NR_fork + 1)
 #endif
 #if __BITS_PER_LONG == 64 && !defined(__SYSCALL_COMPAT)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_fcntl __NR3264_fcntl
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_statfs __NR3264_statfs
 #define __NR_fstatfs __NR3264_fstatfs
 #define __NR_truncate __NR3264_truncate
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_ftruncate __NR3264_ftruncate
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_lseek __NR3264_lseek
 #define __NR_sendfile __NR3264_sendfile
 #define __NR_newfstatat __NR3264_fstatat
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_fstat __NR3264_fstat
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_mmap __NR3264_mmap
 #define __NR_fadvise64 __NR3264_fadvise64
 #ifdef __NR3264_stat
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_stat __NR3264_stat
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_lstat __NR3264_lstat
 #endif
 #else
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_fcntl64 __NR3264_fcntl
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_statfs64 __NR3264_statfs
 #define __NR_fstatfs64 __NR3264_fstatfs
 #define __NR_truncate64 __NR3264_truncate
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_ftruncate64 __NR3264_ftruncate
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_llseek __NR3264_lseek
 #define __NR_sendfile64 __NR3264_sendfile
 #define __NR_fstatat64 __NR3264_fstatat
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_fstat64 __NR3264_fstat
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_mmap2 __NR3264_mmap
 #define __NR_fadvise64_64 __NR3264_fadvise64
 #ifdef __NR3264_stat
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_stat64 __NR3264_stat
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_lstat64 __NR3264_lstat
 #endif
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */