Added update_metadata-protos-full am: 87484b05ea

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2316519

Change-Id: I3b2b3fda8ccf2ba0ae1d7d545e6da441ae0036b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>