Merge changes from topic "hearingAidsInT" into tm-dev

* changes:
  Add 'Live Caption' preference for hearing aids device in Device details page
  Update summary in Accessibility -> Hearing aids
  Header for hearing aids now listed in one summary

src/com/android/settings/bluetooth/BluetoothDeviceDetailsFragment.java

@@ -246,6 +246,8 @@ public class BluetoothDeviceDetailsFragment extends RestrictedDashboardFragment
                     mCachedDevice, lifecycle));
             controllers.add(new BluetoothDetailsMacAddressController(context, this, mCachedDevice,
                     lifecycle));
+            controllers.add(new BluetoothDetailsRelatedToolsController(context, this, mCachedDevice,
+                    lifecycle));
         }
         return controllers;
     }