Set chromeos_official=False on trybots.

Every trybot build should have a unique version number so that it can't
be confused with an official build. We accomplish this by setting
chromeos_official=False. This marks the builds as being 'developer'
builds instead of actual true official builds, which is really what we
want.

I've also updated cbuildbot_stages.py to not use the chromeos_official
flag to decide whether to build the hwqual tarball, since that really
doesn't make sense.

BUG=chromium:236009
TEST=Run remote trybot run with hwtest.

Change-Id: Iabdf69187bb877c166cf338010cd71b3602997fa
Reviewed-on: https://gerrit.chromium.org/gerrit/49372
Reviewed-by: Ryan Cui <rcui@chromium.org>
Commit-Queue: David James <davidjames@chromium.org>
Tested-by: David James <davidjames@chromium.org>
3 files changed