Merge "Clarify how FGS restriction won't apply STICKY FGS restarts" into sc-dev am: 0c1dc2fc76 am: 911ed7c949 am: c3139a186b am: 869b5739d6

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

Change-Id: If1bd85c5ba422a2a598bf59699c6138d83eab62b