Merge "Add activitymanager debug option to freeze a process" into udc-dev am:...

Merge "Add activitymanager debug option to freeze a process" into udc-dev am: 731a5331 am: 800d7c70

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22162913



Change-Id: I289b1802dc2cf4e4bd6f7579825d19979d388ca1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>