glbench: add reference images

These images match on stumpy_freon and parrot_freon.

BUG=chromium:413080
TEST=images were harvested from failed test runs so they ought to work

Change-Id: Ie939fec668c1380eee645d4dc1c55e239632c395
Reviewed-on: https://chromium-review.googlesource.com/263334
Reviewed-by: Ilja Friedel <ihf@chromium.org>
Commit-Queue: Ilja Friedel <ihf@chromium.org>
Tested-by: Ilja Friedel <ihf@chromium.org>
5 files changed