Start per build firmware regression tests

This change is supposed to have the test_suites/control.faft_lv1 suite
run after every successful build. This suite does very little, the
objective of this change is to verify that the lab setup is
operational and all pieces are in place.

BUG=chromium-os:22475
TEST=manual
   . tried running

    $  ./site_utils/suite_scheduler/suite_scheduler.py --sanity
    WARNING:root:Increase KernelPerBuildRegression to |num: 2|

   the warning is there with and without this change.

Change-Id: I3f5ae9cb0b5ce3182defbf35a3afae5d6cb95746
Reviewed-on: https://gerrit.chromium.org/gerrit/40919
Reviewed-by: John D Hong <johndhong@chromium.org>
Tested-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Scott Zawalski <scottz@chromium.org>
Commit-Queue: Brian Harring <ferringb@chromium.org>
1 file changed