Merge "[RESTRICT AUTOMERGE]Only allow system and same app to apply relinquishTaskIdentity" into sc-dev am: e1c709645b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16565830

Change-Id: Id103a9ffffd83c285085d7cc2accd75873e290d9