Removing the openonu-py from the helm charts, increasing the of-agent version

Change-Id: Ia99c813d4e34b32e4a3325442cc6f0b9aa75ced1
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index f717ccd..d984447 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha"
-version: "2.8.1"
+version: "2.8.2"
 description: "A Helm chart for Voltha based on K8S resources in Voltha project"
 keywords:
   - "onf"