[automerger skipped] Merge "fastboot: support vbmeta_vendor.img" into sc-dev am: e89ec3c0 -s ours

am skip reason: Merged-In If61fff1c83513d71605c0cef2737a38f7575d69b with SHA-1 a48a7835 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/14876515

Change-Id: I303d69071675324d4fc9f967c08f26696032d465