Make libnosys function stubs part of libnacl

src/untrusted/nosys/getpwnam_r.c

-/*
- * Copyright 2010 The Native Client Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can
- * be found in the LICENSE file.
- */
-
-
-/*
- * Stub routine for `gepwnam_r' for porting support.
- */
-
-#include <sys/types.h>
-#include <pwd.h>
-#include <errno.h>
-
-int getpwnam_r(const char *name, struct passwd * pwbuf,
-               char *buf, size_t buflen, struct passwd **pwbufp) {
-  return ENOSYS;
-}
-
-#include "native_client/src/untrusted/nosys/warning.h"
-stub_warning(getpwnam_r);