Merge "Add callSessionIntiating + callSessionInitatingFailed" am: cc7c94c433 am: 54c80ca1f5

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1520003

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I057d27f999ff11fe3ebc571cb8f338fa8e883419