Add title and description of MANAGE_ONGOING_CALLS

Test: Treehugger
Bug: 169595473
Change-Id: I7892d9fe2b52f281c7e9309c4e9a7bb0b9c875d1
Merged-In: I7892d9fe2b52f281c7e9309c4e9a7bb0b9c875d1
(cherry picked from commit 3c8bac198e73c98b570d61c08ee62736fd072dbe)
2 files changed