Verity writes propogate progress report am: 3efb3f2a55 am: da6f5a88a5

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

Change-Id: I15a87f2149dc19a7738c88a5e4b2967736d42005
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>