Merge "Append root digest information of microdroid vendor into vendor.img"...

Merge "Append root digest information of microdroid vendor into vendor.img" into main am: a7932967 am: d53dd61f

Original change: https://android-review.googlesource.com/c/platform/build/+/2877541



Change-Id: I6862637301ba9a81ad335dd7d85173fd3ea4ddd5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>