Merge changes Ibbfa68d6,Idb76a0e2 into experimental

* changes:
  Move EOB to per-plane data
  Move qcoeff, dqcoeff from BLOCKD to per-plane data

diff --cc vp9/common/vp9_blockd.h
Simple merge

diff --cc vp9/decoder/vp9_decodframe.c
Simple merge

diff --cc vp9/encoder/vp9_rdopt.c
Simple merge