vboot_api_kernel: Print warning in TONORM when GBB flags force DEV.

We use gbb-flag-force-dev-switch-on in default firmware images to make
things easier for factory and some devs.

But when we request normal mode there should be some sort of warning/error
telling the user that this is not available, otherwise we can spent time trying
to figure out why the firmware doesn't work.

BRANCH=all
BUG=chrome-os-partner:14474
TEST=flash image to Link, set GBB flags to 0x39, boot to DEV screen
     and press SPACE (TONORM); gets beep and warning messages.

Change-Id: Id48c12693c7575001fae7fad92a868cb5465e83d
Reviewed-on: https://gerrit.chromium.org/gerrit/34172
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
1 file changed