roc-umbrella: add 2.1.x model

Change-Id: I4ddea2006f91cce6da3cc09ed81301f211708da7
diff --git a/aether-roc-umbrella/values.yaml b/aether-roc-umbrella/values.yaml
index 4e06b30..cefc205 100644
--- a/aether-roc-umbrella/values.yaml
+++ b/aether-roc-umbrella/values.yaml
@@ -361,11 +361,11 @@
       enabled: false
   modelPlugins:
     - name: aether-2
-      image: onosproject/aether-2.0.x:2.0.2-aether-2.0.x
+      image: onosproject/aether-2.0.x:2.0.3-aether-2.0.x
       endpoint: localhost
       port: 5152
-    - name: aether-4
-      image: onosproject/aether-4.x:4.0.19-dev-aether-4.0.18
+    - name: aether-2-1
+      image: onosproject/aether-2.1.x:2.1.1-aether-2.1.x
       endpoint: localhost
       port: 5153