Make mips/mips64 syscall stubs more like the other architectures.

Change-Id: I55f8c1a95f643a6e484f12fbcc25e2c77e55b6b8
diff --git a/libc/arch-mips64/syscalls/_flush_cache.S b/libc/arch-mips64/syscalls/_flush_cache.S
index c2f8cd6..132fd4e 100644
--- a/libc/arch-mips64/syscalls/_flush_cache.S
+++ b/libc/arch-mips64/syscalls/_flush_cache.S
@@ -1,14 +1,8 @@
 /* Generated by gensyscalls.py. Do not edit. */
 
-#include <asm/unistd.h>
-#include <machine/asm.h>
-#include <machine/regdef.h>
-    .text
-    .globl _flush_cache
-    .align 4
-    .ent _flush_cache
+#include <private/bionic_asm.h>
 
-_flush_cache:
+ENTRY(_flush_cache)
     .set push
     .set noreorder
     li v0, __NR_cacheflush
@@ -28,4 +22,4 @@
     j t9
     move ra, t0
     .set pop
-    .end _flush_cache
+END(_flush_cache)