Updated to v4.4.1 kernel headers.

Small modifications needed to allow compilation with the new headers:

- Manually modify bionic/libc/kernel/uapi/asm-mips/asm/siginfo.h to
  remove the uapi from the include.
- PR_XXX defines are now available for mips, so remove the definition
  from linker_mips.cpp.

Bug: 23789423
Change-Id: I6dc8a03b012426d3a937db15cb24d3a50fab5a8c
diff --git a/libc/kernel/uapi/linux/msg.h b/libc/kernel/uapi/linux/msg.h
index ab94ef6..b455f0c 100644
--- a/libc/kernel/uapi/linux/msg.h
+++ b/libc/kernel/uapi/linux/msg.h
@@ -63,17 +63,16 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
   unsigned short msgseg;
 };
-#define MSG_MEM_SCALE 32
-#define MSGMNI 16
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MSGMNI 32000
 #define MSGMAX 8192
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MSGMNB 16384
 #define MSGPOOL (MSGMNI * MSGMNB / 1024)
 #define MSGTQL MSGMNB
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MSGMAP MSGMNB
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MSGSSZ 16
 #define __MSGSEG ((MSGPOOL * 1024) / MSGSSZ)
 #define MSGSEG (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */