[SDFAB-834] Add application filtering to ONOS UPF programmable APIs

Change-Id: I3e3d44d5d160470c3f4bfca32e7a83e194d155d8
(cherry picked from commit 97fd80c104570275937d4c24227916c83bf0dd4c)
diff --git a/core/api/src/main/java/org/onosproject/net/behaviour/upf/UpfEntityType.java b/core/api/src/main/java/org/onosproject/net/behaviour/upf/UpfEntityType.java
index 7ec3b19..e61abf1 100644
--- a/core/api/src/main/java/org/onosproject/net/behaviour/upf/UpfEntityType.java
+++ b/core/api/src/main/java/org/onosproject/net/behaviour/upf/UpfEntityType.java
@@ -29,7 +29,8 @@
     SESSION_DOWNLINK("session_downlink"),
     SESSION_UPLINK("session_downlink"),
     TUNNEL_PEER("tunnel_peer"),
-    COUNTER("counter");
+    COUNTER("counter"),
+    APPLICATION("application");
 
     private final String humanReadableName;