Merge "Remove public visibility of bluetooth impl" into tm-dev am: 742c3ea4 am: 177336a2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17970091



Change-Id: I62f40425ade2b6f8a5287f3a1263c93ed92de47b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>