Merge "Unregister GATT clients when disconnected" into main am: ee727806 am: f9f20c17

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3369884



Change-Id: I90d958d2fda2e1f77042cfcf719726208b9ca6d8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>