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/include/bits/glibc-syscalls.h b/libc/include/bits/glibc-syscalls.h
index 1decafd..cc7645b 100644
--- a/libc/include/bits/glibc-syscalls.h
+++ b/libc/include/bits/glibc-syscalls.h
@@ -780,6 +780,9 @@
 #if defined(__NR_prlimit64)
   #define SYS_prlimit64 __NR_prlimit64
 #endif
+#if defined(__NR_process_madvise)
+  #define SYS_process_madvise __NR_process_madvise
+#endif
 #if defined(__NR_process_vm_readv)
   #define SYS_process_vm_readv __NR_process_vm_readv
 #endif