Define a Criterion for OchSginalType

Resolve ONOS-1846

Change-Id: I63462a3e2702c93b1d1c84a324bdbaa351bac633
diff --git a/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java b/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
index a4892c3..781e7b4 100644
--- a/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
+++ b/core/store/serializers/src/main/java/org/onosproject/store/serializers/KryoNamespaces.java
@@ -102,6 +102,7 @@
 import org.onosproject.net.flow.criteria.MetadataCriterion;
 import org.onosproject.net.flow.criteria.MplsCriterion;
 import org.onosproject.net.flow.criteria.OchSignalCriterion;
+import org.onosproject.net.flow.criteria.OchSignalTypeCriterion;
 import org.onosproject.net.flow.criteria.OpticalSignalTypeCriterion;
 import org.onosproject.net.flow.criteria.PortCriterion;
 import org.onosproject.net.flow.criteria.SctpPortCriterion;
@@ -294,6 +295,7 @@
                     LambdaCriterion.class,
                     IndexedLambdaCriterion.class,
                     OchSignalCriterion.class,
+                    OchSignalTypeCriterion.class,
                     OpticalSignalTypeCriterion.class,
                     Criterion.class,
                     Criterion.Type.class,