[CORD-1675]Bug fix and encode, decode implementation for Ofdpa3 extensions

Change-Id: Idbace6d58fdcff5573b250319f02fe31d09b8467
diff --git a/drivers/default/src/main/resources/onos-drivers.xml b/drivers/default/src/main/resources/onos-drivers.xml
index aae4266..2f646d5 100644
--- a/drivers/default/src/main/resources/onos-drivers.xml
+++ b/drivers/default/src/main/resources/onos-drivers.xml
@@ -88,6 +88,10 @@
                    impl="org.onosproject.driver.extensions.Ofdpa3ExtensionSelectorInterpreter" />
         <behaviour api="org.onosproject.net.behaviour.ExtensionSelectorResolver"
                    impl="org.onosproject.driver.extensions.Ofdpa3ExtensionSelectorInterpreter" />
+        <behaviour api="org.onosproject.net.flow.ExtensionTreatmentCodec"
+                   impl="org.onosproject.driver.extensions.Ofdpa3ExtensionTreatmentInterpreter" />
+        <behaviour api="org.onosproject.net.flow.ExtensionSelectorCodec"
+                   impl="org.onosproject.driver.extensions.Ofdpa3ExtensionSelectorInterpreter" />
     </driver>
 
     <!--  Driver for OFDPA 3.0 EA* for Qumran based switches.