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

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

Change-Id: I517db8a1b3e68c28c9210a65b1fa65f37e020ccc