Merge "Telephony method for ecall diagnostic data" into udc-dev am: 94790d99 am: a181d939

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



Change-Id: Iefd8678d2fe358961b9da0b076a33da8d8363fd4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>