Merge "Add title and description of MANAGE_ONGOING_CALLS" am: 45066562 am: c33f2e50

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1534265

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I2b84f3a7d100041863d12a3baf853f171f6d8c37