Merge "Add tests for classes in package HfpClient" into tm-qpr-dev am: bfa1b11c am: 1b3e47f1

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/20470552



Change-Id: I949c54e23187a740739b5b0c43ea517828266b4d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>