Merge "Clarify how FGS restriction won't apply STICKY FGS restarts" into sc-dev am: 0c1dc2fc76 am: 911ed7c949 am: 96ae65cf6f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15484572

Change-Id: I66a03ebf2d2f90d396c73a04efcf431348e81ec9