libvpx: Pull from upstream

source/libvpx/vpx_scale/generic/gen_scalers.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 197 matching lines @@
   }
 }
 
 void vp8_vertical_band_2_1_scale_c(unsigned char *source,
                                    unsigned int src_pitch,
                                    unsigned char *dest,
                                    unsigned int dest_pitch,
                                    unsigned int dest_width) {
   (void) dest_pitch;
   (void) src_pitch;
-  vpx_memcpy(dest, source, dest_width);
+  memcpy(dest, source, dest_width);
 }
 
 void vp8_vertical_band_2_1_scale_i_c(unsigned char *source,
                                      unsigned int src_pitch,
                                      unsigned char *dest,
                                      unsigned int dest_pitch,
                                      unsigned int dest_width) {
   int i;
   int temp;
   int width = dest_width;
 
   (void) dest_pitch;
 
   for (i = 0; i < width; i++) {
     temp = 8;
     temp += source[i - (int)src_pitch] * 3;
     temp += source[i] * 10;
     temp += source[i + src_pitch] * 3;
     temp >>= 4;
     dest[i] = (unsigned char)(temp);
   }
 }