Merge "Don't allow core uids to be unfrozen due to deferrable broadcasts."...

Merge "Don't allow core uids to be unfrozen due to deferrable broadcasts." into udc-qpr-dev am: 519a6057 am: 7b5dd4cc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23879974



Change-Id: I048cd83f2e098440c7da36b77d8246abd368c617
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>