Merge "Tests for 3rd call reception in DSDA." into udc-dev am: 6cad656c6e am: a542781733

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/23125259

Change-Id: Ib32ec44328739b7d4220aea5e288c995a1015464
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>