firmware: calling menu ui when using detachables

BUG=chrome-os-partner:61275
BRANCH=None
TEST=compile depthcharge with
     inflags=VB_SALK_INFLAGS_ENABLE_DETACHABLE_UI and run.

Change-Id: I4c2351feef51bbf88fefd37986de6f853cd1942e
Signed-off-by: Shelley Chen <[email protected]>
Reviewed-on: https://chromium-review.googlesource.com/424091
Reviewed-by: Randall Spangler <[email protected]>
2 files changed