vboot: Initialize USB in diagnostic mode

In addition to recovery and developer modes, diagnostic mode also has
UI. Therefore, we need to initialize USB in diagnostic mode as well.

BUG=b:229698042, b:179334129
BRANCH=none
TEST=USB KB worked in diagnostic mode

Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: Ib81c63bb15c8fad441f2f4862e916ac852497f37
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/3626949
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
1 file changed