Determine the bluetooth address of an input device from its uniqueId

Since the Android Bluetooth stack sets a Bluetooth HID device's unique
ID as the Bluetooth address, attempt to parse the address from an input
device's uniqueId when connected over the Bluetooth bus.

DD: go/inputdevice-battery-notifications

Bug: 243005009
Test: manual, check dumpsys output
Change-Id: I710868f2b202e6cebf8b6a3853a6a5c79f3bc671