ONOS-6886 Move interface classes from incubator to core

Change-Id: Iaae4d98279e4b77fc3f0b5a63d547921f93aeb46
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java b/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java
index 1955ced..eab3395 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java
@@ -22,8 +22,8 @@
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
-import org.onosproject.incubator.net.intf.Interface;
-import org.onosproject.incubator.net.intf.InterfaceService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.EncapsulationType;
 import org.onosproject.net.Host;
 import org.onosproject.net.host.HostEvent;