Merge "Don't fire frozen state callbacks under AMS global lock" into udc-dev am: a8846e42

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22461207



Change-Id: I6033c8b98ff287983646e2fbf56dd73135664a6f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>