tests: Add cgpt fuzzer.

This adds a fuzzer binary to exercise GPT parsing.

BUG=chromium:1014101
TEST=Build and run fuzzer.
BRANCH=none

Change-Id: Idecc0ddf491e976d4e01f5778e51a01ac317d961
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1859595
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
2 files changed