Merge "Don't send null data call list response" into tm-dev am: 174c5ebb78 am: fc9d1b5c1b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17803433

Change-Id: I260cb6da4258da5a6d8620044fbc3de3238f35ee
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>