udc/chipidea: Allow force_shutdown of connection

Allow force shutdown operation of the connection in case where the
cable is disconnected and reconnected back.

BUG=chrome-os-partner:41687
BRANCH=None
TEST=Compiles successfully and fastboot works fine even with
reconnection of cable

Change-Id: I354c44e0ed2211cb2c4c1ae653d201b7d15ea932
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/281066
Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
2 files changed