update_engine: error out on bad compression factor am: 722f6f858a

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/3019784

Change-Id: I61e12242f360efc9ea4dcee72897c9f45cc06742
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>