Update to v5.10 kernel headers.

Kernel headers coming from:

Git: https://android.googlesource.com/kernel/common/
Branch: android-mainline
Tag: android-mainline-5.10

Test: Built cuttlefish and flame images. Ran bionic unit tests on both.
Change-Id: I37ffc850970adcce1febbe2269c202632fce763a
diff --git a/libc/kernel/uapi/asm-arm/asm/unistd-common.h b/libc/kernel/uapi/asm-arm/asm/unistd-common.h
index 6e7faec..060d626 100644
--- a/libc/kernel/uapi/asm-arm/asm/unistd-common.h
+++ b/libc/kernel/uapi/asm-arm/asm/unistd-common.h
@@ -411,4 +411,5 @@
 #define __NR_openat2 (__NR_SYSCALL_BASE + 437)
 #define __NR_pidfd_getfd (__NR_SYSCALL_BASE + 438)
 #define __NR_faccessat2 (__NR_SYSCALL_BASE + 439)
+#define __NR_process_madvise (__NR_SYSCALL_BASE + 440)
 #endif