Update kernel uapi headers to v3.16.1.

Other changes to support the new headers:

- Remove the flock64 structure it is defined in the new headers.
- Update the syscalls to correspond with the headers.

Change-Id: I49a6b07e8b2bfffb67be71b07b58e4e6848fcc09
diff --git a/libc/kernel/uapi/asm-arm/asm/unistd.h b/libc/kernel/uapi/asm-arm/asm/unistd.h
index be9f36f..c93934a 100644
--- a/libc/kernel/uapi/asm-arm/asm/unistd.h
+++ b/libc/kernel/uapi/asm-arm/asm/unistd.h
@@ -458,27 +458,28 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_sched_setattr (__NR_SYSCALL_BASE+380)
 #define __NR_sched_getattr (__NR_SYSCALL_BASE+381)
+#define __NR_renameat2 (__NR_SYSCALL_BASE+382)
 #define __ARM_NR_BASE (__NR_SYSCALL_BASE+0x0f0000)
-#define __ARM_NR_breakpoint (__ARM_NR_BASE+1)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define __ARM_NR_breakpoint (__ARM_NR_BASE+1)
 #define __ARM_NR_cacheflush (__ARM_NR_BASE+2)
 #define __ARM_NR_usr26 (__ARM_NR_BASE+3)
 #define __ARM_NR_usr32 (__ARM_NR_BASE+4)
-#define __ARM_NR_set_tls (__ARM_NR_BASE+5)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define __ARM_NR_set_tls (__ARM_NR_BASE+5)
 #undef __NR_time
 #undef __NR_umount
 #undef __NR_stime
-#undef __NR_alarm
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#undef __NR_alarm
 #undef __NR_utime
 #undef __NR_getrlimit
 #undef __NR_select
-#undef __NR_readdir
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#undef __NR_readdir
 #undef __NR_mmap
 #undef __NR_socketcall
 #undef __NR_syscall
-#undef __NR_ipc
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#undef __NR_ipc
 #endif