i1905: default enabling of 1905 Network Topology reporting
the default value was fault: root@iopsys-44d4376af8b0:~# obuspa -c get "Device.IEEE1905.AL.NetworkTopology.Enable" Device.IEEE1905.AL.NetworkTopology.Enable => 0
changed to default value set: root@iopsys-44d4376af8b0:~# obuspa -c get "Device.IEEE1905.AL.NetworkTopology.Enable" Device.IEEE1905.AL.NetworkTopology.Enable => 1