ref: 807ce8fb1e97d35bc9743c4b02d721c044725fa5
parent: 8152b0904d60edd4cb5fd71144354698c3083cbd
author: Johann <johannkoenig@google.com>
date: Tue Jul 11 03:22:26 EDT 2017
sad4d neon: 16x[8,16,32] Rewrite 16x16. Use half the accumulator registers. BUG=webm:1425 Change-Id: I44b48512b1e3629505d83c2645e800f53878ccc2