Verity writes propogate progress report am: 3efb3f2a55

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2364580

Change-Id: I1e3354f6b1170314c49de298f11c3244047ed7c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>