libc_init_static: apply relro earlier.

The dynamic linker applies relro before the preinit and init
arrays are executed, so we should be consistent for statically
linked executables.

Change-Id: Ia0a49d0e981a6e8791f74eed00280edf576ba139

libc/bionic/libc_init_static.c

@@ -101,6 +101,8 @@ __noreturn void __libc_init(uintptr_t *elfdata,
     /* Initialize the C runtime environment */
     __libc_init_common(elfdata);
 
+    apply_gnu_relro();
+
     /* Several Linux ABIs don't pass the onexit pointer, and the ones that
      * do never use it.  Therefore, we ignore it.
      */
@@ -122,6 +124,5 @@ __noreturn void __libc_init(uintptr_t *elfdata,
     if (structors->fini_array)
         __cxa_atexit(__libc_fini,structors->fini_array,NULL);
 
-    apply_gnu_relro();
     exit(slingshot(argc, argv, envp));
 }