Merge "Telephony method for ecall diagnostic data" into udc-dev am: 94790d99

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21834598



Change-Id: Ieda25eb0307eb59dbfccf4da93922649cc5005a8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>