Merge "Register AppHibernationManager in service registry" am: 44183743e0 am: 0de60cd4e8 am: 2c842f3aa7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1572766

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3419fcaa184043d07c6e02579b6dec13d23f356f