Merge "Write the vbmeta digest to the output zipfile also" into sc-dev am: 82ff8ca9 am: 3f743d57 am: ff910ce1

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/15288142

Change-Id: Ie3511fddf3d44d8b0fbc9c2c74f9203193a21d95