Merge "Statsd log for app notification bans." into rvc-dev am: 4c3e3455 am:...

Merge "Statsd log for app notification bans." into rvc-dev am: 4c3e3455 am: 94ba1f28 am: c1754c03

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11881552

Change-Id: I6cef083dc6147c24c35055a87725d22b2e11e350