BluetoothDeviceManager: Fix regression after gtbs merge am: 735c249558 am: 9921c21329 am: 2ca2bbe1f5 am: 2f689c4fc7

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telecomm/+/1947108

Change-Id: Ia2dc8c5d3f037cb199ce62028bf76cb511449a5b