Enable 720p Chameleon Video Image Comparison tests.

We have been runnign 480p H264 and VP8 tests, as we are beginning
to get more stable results, it makes sense to enable more tests.

BUG=None.
TEST=Ran the test on a lab device.

Change-Id: I5283d81a46864060871dacbc61790998a0225f10
Reviewed-on: https://chromium-review.googlesource.com/317903
Commit-Ready: Mussa Kiroga <mussa@chromium.org>
Tested-by: Mussa Kiroga <mussa@chromium.org>
Reviewed-by: Rohit Makasana <rohitbm@chromium.org>
3 files changed