Merge "Ensure vbmeta_digest is not empty" into main am: fa6a20d809 am: 32bee7c6b1

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3107077

Change-Id: I8eb46d0c5baa43af75a2d61051c947c184b8ed3f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>