Fix build by avoiding the _C_LABEL macro.

Change-Id: Ide367c2b65071388bd95fbc81a4ed6ae94aec4e4
diff --git a/libc/arch-arm64/syscalls/getrlimit.S b/libc/arch-arm64/syscalls/getrlimit.S
index 21b471e..4fb5f7c 100644
--- a/libc/arch-arm64/syscalls/getrlimit.S
+++ b/libc/arch-arm64/syscalls/getrlimit.S
@@ -20,5 +20,5 @@
     ret
 END(getrlimit)
 
-    .globl _C_LABEL(getrlimit64)
-    .equ _C_LABEL(getrlimit64), _C_LABEL(getrlimit)
+    .globl getrlimit64
+    .equ getrlimit64, getrlimit