Mark inactive slot as invalid after OTA completion am: 9e6bfc1a01 am: 1d3b40ca6f am: 6f609d1a44

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2221688

Change-Id: I94a1114001a5fa497a4df3c039a445015f3cfe26
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>