Merge "Call Diagnostic Service implementation" am: f4f7063e45 am: 9930c57cd0 am: ad73d1174b

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telecomm/+/1604772

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Icec68b1b167697f5f22ad57221864844e2ef7d8a