Using latest released version for different components and update voltha-stack chart.

Change-Id: I383927d4c691859ca33a73d384b633435eed15e7
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index ded391d..8ca0cb9 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -28,18 +28,18 @@
 name: voltha-stack
 
 appVersion: "2.8-dev"
-version: 0.2.2
+version: 0.2.3
 
 dependencies:
   - name: voltha
     repository: file://../voltha
-    version: 2.9.2
+    version: 2.9.3
     condition: voltha.enabled
   - name: voltha-adapter-openonu
     repository: file://../voltha-adapter-openonu
-    version: 2.7.15
+    version: 2.8.0
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt
-    version: 2.8.8
+    version: 2.9.0
     condition: voltha-adapter-openolt.enabled