[autotest] add trybot support to ParseBuildName

Updates the ParseBuildName utility to accept trybot builds.

BUG=chromium:412451
TEST=able to create suite jobs with a trybot build in the afe.
DEPLOY=apache

Change-Id: Ie8664692280cbd811e7314468eaaa6248d8b6224
Reviewed-on: https://chromium-review.googlesource.com/217294
Reviewed-by: Dan Shi <dshi@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Tested-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Simran Basi <sbasi@chromium.org>
1 file changed