enable av1 decoding on arm

BUG=chromium:938189

Change-Id: I96d9d14c1c39620b46b0f936e1827580b6da966a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1501762
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639341}
1 file changed