Merge "Add const before the dequant(dq)" into experimental

diff --cc vp9/common/rtcd_defs.sh
Simple merge

diff --cc vp9/decoder/dequantize.c
Simple merge

diff --cc vp9/decoder/idct_blk.c
index f18c49b900712515f9add193c1bc5accfbb29262,998a211879a416a8ebc8788c8b5bf03525cc55f6..7805aa09eb4fe95af95c58b547b408092bff9901
--- 1/vp9/decoder/idct_blk.c
--- 2/vp9/decoder/idct_blk.c
+++ b/vp9/decoder/idct_blk.c
@@@ -8,10 -8,10 +8,10 @@@
   *  be found in the AUTHORS file in the root of the source tree.
   */
  
 -#include "vpx_rtcd.h"
 +#include "vp9_rtcd.h"
  #include "vp9/common/idct.h"
  
- void vp9_dequant_dc_idct_add_y_block_c(short *q, short *dq,
+ void vp9_dequant_dc_idct_add_y_block_c(short *q, const short *dq,
                                         unsigned char *pre,
                                         unsigned char *dst,
                                         int stride, unsigned short *eobs,