tests/futility/test_show_and_verify: Add test cases for kernel vblocks

The output of 'futility show' is slightly different for a kernel
partition and kernel vblock. Therefore, add two test cases for the
latter.

BUG=none
TEST=make runfutiltests
BRANCH=none

Change-Id: I0af057982aeab890abcf3e40fa2816f210a07d18
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/5042017
Reviewed-by: Julius Werner <jwerner@chromium.org>
4 files changed