Merge "Add keyguardGoingAway to the state controller." into tm-dev am: 1254f916 am: 0feb592c am: 0cd1d7f7 am: 431fde4d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17892805



Change-Id: I1c24115695dd99ba286cf8168f7dce6bc71daa0b
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>