Add one more recovery reason for keyblock verify failure.

It depends on the previous change (https://gerrit.chromium.org/gerrit/12431),
which corrupts the RW firmware signature instead of body, that leads to
recovery with the reason 19 "keyblock verify failure".

BUG=chrome-os-partner:6882, chrome-os-partner:6683
TEST=run_remote_tests.sh --remote=$REMOTE_IP -a "xml_config=$OVERLAY_XML \
        servo_vid=0x18d1 servo_pid=0x5001" CorruptBothFwAB/control.both

Change-Id: I65c9b0b940226063db3551f865853202e33b74e4
Reviewed-on: https://gerrit.chromium.org/gerrit/12430
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
1 file changed