Fix not working listen() on Bluez with default Bluetooth addresses

Binding to the address 0 does not work.

Change-Id: Ie2e9bfc64729e6bf82556c3384d2e72117fc39ab
Reviewed-by: Nedim Hadzic <nedimhadzija@gmail.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>