Merge "apply-update: Add option to boot device off snapshots" into main am:...

Merge "apply-update: Add option to boot device off snapshots" into main am: efe22769 am: 741522fc

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3524958



Change-Id: I35b85211208356e455c07b59e894d98349ffb089
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>