Inserted set and get controllers methods in ovsdb controller config

Change-Id: I791ff2ae159d0ac50beff22abda2b187913428f6
diff --git a/drivers/src/main/resources/onos-drivers.xml b/drivers/src/main/resources/onos-drivers.xml
index aea743f..5059d4b 100644
--- a/drivers/src/main/resources/onos-drivers.xml
+++ b/drivers/src/main/resources/onos-drivers.xml
@@ -30,6 +30,8 @@
             manufacturer="Nicira, Inc\." hwVersion="Open vSwitch" swVersion="2\..*">
         <behaviour api="org.onosproject.openflow.controller.driver.OpenFlowSwitchDriver"
                    impl="org.onosproject.driver.handshaker.NiciraSwitchHandshaker"/>
+        <behaviour api="org.onosproject.net.behaviour.ControllerConfig"
+                   impl="org.onosproject.driver.ovsdb.OvsdbControllerConfig"/>
     </driver>
     <driver name="ovs-corsa" extends="ovs"
             manufacturer="Corsa" hwVersion="emulation" swVersion="0.0.0">