ref: b158d9a649bc36c0ee602ae122606df9bb23a896
parent: eace551c8738b878d3649f70d82dd13ca3a96a29
author: Jian Zhou <zhoujian@google.com>
date: Wed Dec 16 10:52:02 EST 2015
Code clean of sad4xN(_avg)_sse Replace MMX with SSE2, reduce psadbw ops which may help Silvermont. Change-Id: Ic7aec15245c9e5b2f3903dc7631f38e60be7c93d