Merge "Close unexpected HearingAid open event if is not attempting to connect" am: f324ac07

    HearingDevice* hearingDevice = hearingDevices.FindByAddress(address);

    if (!hearingDevice) {

      DVLOG(2) << "Skipping unknown device, address=" << address;

      /* When Hearing Aid is quickly disabled and enabled in settings, this case

       * might happen */

      LOG(WARNING) << "Closing connection to non hearing-aid device, address="

                   << address;

      BTA_GATTC_Close(conn_id);

      return;

    }