Merge "Don't send null data call list response" into tm-dev am: 174c5ebb am:...

Merge "Don't send null data call list response" into tm-dev am: 174c5ebb am: fc9d1b5c am: 9bbb8e5f

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



Change-Id: I5f10c9116b73f784a5ffb2f018b4fdc1b28733d3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>