futility: Add `show` test for CBFS integration firmware

This patch adds a new test file for test_show_contents.sh to cover the
CBFS integration image variant. The metadata hash for VBLOCK_B has been
intentionally invalidated so that we can test output for both valid and
invalid cases.

Also add some extra parseable output to balance out output lines between
valid and invalid cases.

BRANCH=none
BUG=none
TEST=make runtests

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I57cf75dae7a6fae4422170178b275fed27a12ce7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/4691094
Reviewed-by: Saketh Pothireddy <spothire@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
5 files changed