ref: 6d7b7abf5215ab94c835180d1c90a2365fdbcaf9
parent: 7b232717af43e5271073119ce452d31860cd6a36
author: Yunqing Wang <yunqingwang@google.com>
date: Fri Jan 16 10:47:25 EST 2015
Add non420 code in multi-threaded loopfilter Added non420 part back to make it consistent with single thread code in vp9_loopfilter.c. Change-Id: I8ca255d73bffebae294d2627d6655eafe535cb90