cros_choose_profile: support bricks

This adds a --brick command line argument that lets cros_choose_profile
support bricks.

BUG=brillo:502
TEST=trybot runs
TEST=`cros_choose_profile --brick //foo` works.

CQ-DEPEND=CL:258810

Change-Id: I154fb072569f486602a3729c54479e29262941da
Reviewed-on: https://chromium-review.googlesource.com/259000
Reviewed-by: Bertrand Simonnet <[email protected]>
Commit-Queue: Bertrand Simonnet <[email protected]>
Trybot-Ready: Bertrand Simonnet <[email protected]>
Tested-by: Bertrand Simonnet <[email protected]>
1 file changed