AdapterProperties: Add dumpsys support

AdapterProperties
  Name: PhoneName
  Address: 0A:DD:7E:55:00:01
  BluetoothClass: null
  ScanMode: SCAN_MODE_CONNECTABLE
  ConnectionState: STATE_CONNECTED
  State: ON
  MaxConnectedAudioDevices: 3
  A2dpOffloadEnabled: false
  Discovering: false
  DiscoveryEndMs: 0
  Bonded devices:
    40:40:00:40:60:10 [BR/EDR] Pixel 2
    AC:50:80:30:00:1F [BR/EDR] BB-BTHP

Bug: 75375851
Test: adb shell dumpsys bluetooth_manager
Change-Id: I4a84bd5224e4d047359b58f2a9812be0c59893a5