Add platform_RebootAfterUpdate to the bvt suite.

I had to land this separately as I need to have autotest sync
it's code in order to have the server-side test on the drones
before adding to the suite.

BUG=chromium:242384
TEST=Ran it -- manually changed time outs to see failures correctly.

Change-Id: Ie9400b17b7d9e759490bf57d6aabeb106a6f4b8e
Reviewed-on: https://gerrit.chromium.org/gerrit/57121
Commit-Queue: Chris Sosa <sosa@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
Tested-by: Chris Sosa <sosa@chromium.org>
1 file changed