libvpx: Pull from upstream

source/libvpx/vp8/common/dequantize.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.
  */
 
@@ skipping 20 matching lines @@
 {
     int i;
 
     for (i = 0; i < 16; i++)
     {
         input[i] = dq[i] * input[i];
     }
 
     vp8_short_idct4x4llm_c(input, dest, stride, dest, stride);
 
-    vpx_memset(input, 0, 32);
+    memset(input, 0, 32);
 
 }