faft: Increase the firmware screen delay to support slower devices

Make it 10 seconds to fit slower devices.

BUG=chromium-os:22601
TEST=Run firmwre_TryFwB/control.dev on Snow passed.

Change-Id: Ia8e4ac516f476ee38c57a9366cdd518d4aed026e
Reviewed-on: https://gerrit.chromium.org/gerrit/28904
Reviewed-by: Vic Yang <victoryang@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
1 file changed