These failures were exposed with the new R7 240 card.

BUG=chromium:637037

Change-Id: I1fe5add2fc08d5c93e338250efb2af62712d0e53
Reviewed-on: https://chromium-review.googlesource.com/371318Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>