Merge "Tests for 3rd call reception in DSDA." into udc-dev am: 6cad656c6e am: 588f011649 am: 5887a98b2f

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

Change-Id: I1a6ab34bc6cfec99bde2022a5bf552d0c8154fa0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>