Add unit tests for vboot_api_firmware.c

BUG=chromium-os:17564
TEST=make && make runtests

Change-Id: I030c204527e1c17b8d6523beec3b7604a638fc98
Reviewed-on: http://gerrit.chromium.org/gerrit/7444
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Tested-by: Randall Spangler <rspangler@chromium.org>
2 files changed