[automerge] RESTRICT AUTOMERGE Validate permission tree size on permission update 2p: 1d86c8b299

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20029947

Bug: 242537498
Change-Id: Ie9f764994b11ad216071d328f5ed01260b8046f5