Merge "Disable user switching when the device is factory resetting." into sc-v2-dev am: 2ddeab71 am: 82eabb43

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17224796

Change-Id: I1046fb17dde6d7830a5121facc4851e5b9682ee8