glbench: add reference images

Add images harvested from an x86-alex_freon run.

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

Change-Id: Ifb6cc2ef0e2384e558b4b6e01d565f08ce730d00
Reviewed-on: https://chromium-review.googlesource.com/265865
Trybot-Ready: Frank Henigman <fjhenigman@chromium.org>
Tested-by: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Ilja Friedel <ihf@chromium.org>
Commit-Queue: Ilja Friedel <ihf@chromium.org>
5 files changed