enable aether-4.0 models in onos-config

Change-Id: If8cde7574e56221d06952028acb93140647ec5a3
diff --git a/aether-roc-umbrella/values.yaml b/aether-roc-umbrella/values.yaml
index 9752a81..9edc47b 100644
--- a/aether-roc-umbrella/values.yaml
+++ b/aether-roc-umbrella/values.yaml
@@ -245,6 +245,8 @@
         enabled: false
       v3:
         enabled: true
+      v4:
+        enabled: true
   plugin:
     compiler:
       target: ""