Updated simon-single cell to include null-provider.
Updated simon-single cell to include null-provider.

Change-Id: I987e8e49a35b7d9900066b78ce563f5ef0c7fa29

gkatsikas/onos,osinstom/onos,osinstom/onos,opennetworkinglab/onos,kuujo/onos,gkatsikas/onos,oplinkoms/onos,gkatsikas/onos,oplinkoms/onos,osinstom/onos,opennetworkinglab/onos,kuujo/onos,gkatsikas/onos,kuujo/onos,gkatsikas/onos,kuujo/onos,kuujo/onos,oplinkoms/onos,oplinkoms/onos,opennetworkinglab/onos,kuujo/onos,opennetworkinglab/onos,osinstom/onos,osinstom/onos,oplinkoms/onos,oplinkoms/onos,opennetworkinglab/onos,opennetworkinglab/onos,kuujo/onos,gkatsikas/onos,oplinkoms/onos