Merge "Disable user switching when the device is factory resetting." into...

Merge "Disable user switching when the device is factory resetting." into sc-v2-dev am: 2ddeab71 am: 82eabb43 am: 08e47712 am: 7af0f1e4

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

Change-Id: I49904f8869c0d9d8414d59c77c35aa28fab97cc0