Starting 2.9 for openonu adapter chart

Change-Id: I08cc9eb1abc7e64640d010912aa9ea2f7527deb0
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index da95cfd..750f89b 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -28,7 +28,7 @@
 name: voltha-stack
 
 appVersion: "2.9-dev"
-version: 2.9.0
+version: 2.9.1
 
 dependencies:
   - name: voltha
@@ -37,7 +37,7 @@
     condition: voltha.enabled
   - name: voltha-adapter-openonu
     repository: file://../voltha-adapter-openonu
-    version: 2.8.4
+    version: 2.9.0
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt