libvpx: Pull from upstream

source/libvpx/vp8/common/copy_c.c

 /*
  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 
 #include <string.h>
 
-#include "vpx_config.h"
+#include "./vp8_rtcd.h"
 #include "vpx/vpx_integer.h"
 
 /* Copy 2 macroblocks to a buffer */
-void vp8_copy32xn_c(unsigned char *src_ptr, int src_stride,
+void vp8_copy32xn_c(const unsigned char *src_ptr, int src_stride,
                     unsigned char *dst_ptr, int dst_stride,
                     int height)
 {
     int r;
 
     for (r = 0; r < height; r++)
     {
         memcpy(dst_ptr, src_ptr, 32);
 
         src_ptr += src_stride;
         dst_ptr += dst_stride;
 
     }
 }