[VOL-2357]openolt adapter log_level command line argument should take log level names not int value

Change-Id: I031ebb45eb41993096157ad5ac8addc877048874
diff --git a/voltha-adapter-openolt/Chart.yaml b/voltha-adapter-openolt/Chart.yaml
index bf9b971..8e9f420 100644
--- a/voltha-adapter-openolt/Chart.yaml
+++ b/voltha-adapter-openolt/Chart.yaml
@@ -17,5 +17,5 @@
 description: A Helm chart for Voltha OpenOLT Adapter
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 2.2.0
-appVersion: 2.2.5
+version: 2.2.1
+appVersion: 2.3.1