Add faccessat to syscall list

Change-Id: I427a18811089cb280769ac8da3ed8adc00a65a10
diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index 61a37d5..e635e68 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -108,6 +108,7 @@
 syscall_src += arch-arm/syscalls/rename.S
 syscall_src += arch-arm/syscalls/__getcwd.S
 syscall_src += arch-arm/syscalls/access.S
+syscall_src += arch-arm/syscalls/faccessat.S
 syscall_src += arch-arm/syscalls/symlink.S
 syscall_src += arch-arm/syscalls/fchdir.S
 syscall_src += arch-arm/syscalls/truncate.S