Merge "[RESTRICT AUTOMERGE]Only allow system and same app to apply relinquishTaskIdentity" into rvc-dev am: b52cedd04b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16961349

Change-Id: I12c5cc50e904965db8d84f89c00dc3c02f29ccdc