Merge "Set up unit test environment for BassClientService" into tm-dev am: 89f4da04

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17903542



Change-Id: Idd231ad37f54068ecbd3dad5268df49ba85748b9
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>