Added basicmbr_fuzzer am: 9d63edf5aa

Original change: https://android-review.googlesource.com/c/platform/external/gptfdisk/+/3019120

Change-Id: I0f41ba259d0ed3c1815272121f1ebbf1531bb18c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>