base

Fetch the Bluetooth name and address without enabling the whole stack

After factory reset and first bootup, fetching the Bluetooth device
name and address is now done without explicitly enabling/disabling
the whole Bluetooth stack.
Apparently, enabling/disabling the whole stack during th first bootup
was somehow holding the kernel wakelock without releasing it.

Also, disable debug log messages for class BluetoothManagerService.

Bug: 21949364
Change-Id: Iffc14f7969d05c1456159d1f4246c53fb5df0f7a