Bluetooth: TWSP: Support Battery Status information display

Reference changes to use the Battery status Intent and display
in Settings UI

 Conflicts:
	packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java

CRs-fixed: 2467643

Change-Id: Ibc81611529df1d1c8ff0453768eb494a8957b9c2
Signed-off-by: Volodymyr Zhdanov <wight554@gmail.com>