Merge "Notify the keepalive is stopped after the slot has been released" am:...

Merge "Notify the keepalive is stopped after the slot has been released" am: 6d7c1854 am: b5e1fecc am: 09ab7ad3 am: 4295a632

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1112851

Change-Id: Ife8e4083142313916660cde2b460e3683f244350