Fix the typo, should be defaults

Change-Id: I7fd5c266a5d93ca9a65867d1856ede5c027f873e
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index 37aa9b4..a73528d 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -17,7 +17,7 @@
 description: A Helm chart for Voltha based on K8S resources in Voltha project
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 2.2.1
+version: 2.2.2
 
 # appVersion is 2 because this chart contains multiple 2.x images that may have
 # different individual image versions.
diff --git a/voltha/values.yaml b/voltha/values.yaml
index 979119f..c8bf4c3 100644
--- a/voltha/values.yaml
+++ b/voltha/values.yaml
@@ -81,7 +81,7 @@
   timeout_request: '{{ .Values.defaults.rw_core.timeout }}'
 
 ofagent:
-  log_level: '{{ .Values.default.log_level }}'
+  log_level: '{{ .Values.defaults.log_level }}'
 
 
 # Define Docker images to be used