[ONOS-7584] Adding Capability of re-connecting to a P4Runtime Device.
Also addresses ONOS-7359

Change-Id: I47ec4ed429af82feb225ab5ac180b94c91366a53
diff --git a/protocols/p4runtime/api/src/main/java/org/onosproject/p4runtime/api/P4RuntimeEvent.java b/protocols/p4runtime/api/src/main/java/org/onosproject/p4runtime/api/P4RuntimeEvent.java
index ab0146f..ae29097 100644
--- a/protocols/p4runtime/api/src/main/java/org/onosproject/p4runtime/api/P4RuntimeEvent.java
+++ b/protocols/p4runtime/api/src/main/java/org/onosproject/p4runtime/api/P4RuntimeEvent.java
@@ -38,6 +38,11 @@
          * Arbitration reply.
          */
         ARBITRATION,
+
+        /**
+         * Channel Event.
+         */
+        CHANNEL_EVENT
     }
 
     public P4RuntimeEvent(Type type, P4RuntimeEventSubject subject) {