Merge "Hold the reference of TelephonyCallback" into tm-dev am: 76de9f1e am:...

Merge "Hold the reference of TelephonyCallback" into tm-dev am: 76de9f1e am: f60dccf9 am: 6b8fe632

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17946240



Change-Id: Ie0c5b0bd63fa1dda89fad1945a400a0ebce3919c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>