Merge "Don't start face auth when device is going to sleep" into sc-dev am: 7499feba am: 0d69567e am: e7a3afa7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15176331

Change-Id: Iaf693cce53f7f81bc1c83aee1c75ad19cf7c26af