Merge "Add testing mocks" am: c7820235 am: bfcf7b1f am: 60510e3a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2300330



Change-Id: I22331e982fb717738d24b5157e41c652e5920ea3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>