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: Ic11bfc07ac3ad19222bcc48dc7e54f46a1af6fe6