ref: 6bac3f80ee21b754e17d0f32ddc18d1bbe9dfc6a
parent: af3cab7b245fd8f60ed6a0699f6321ac19986515
author: Johann <johannkoenig@google.com>
date: Wed Jun 28 09:20:13 EDT 2017
sad neon: avg for 4x4 and 4x8 BUG=webm:1425 Change-Id: Ifc685a96cb34f7fd9243b4c674027480564b84fb