Merge "Add new TelecomManager method to check if a self-mgd app is in a call." into tm-dev am: e429ec01 am: 610e812b am: 83595116

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17414188



Change-Id: Idf98f631c175a988f06c88646d41856de3580f6e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>