Merge "update TelecomManager docs on when to post a CallSytle notif" into udc-dev am: 0fbe9c60 am: 3bb22137 am: abd310b5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23698086



Change-Id: I7aef7ac49ef90a73d9a3d901d46164acfcbc938f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>