VOL-2258 Update helm chart to use 2.2.2 images

Change-Id: I9b5f304b780d799f794fbf1a80948cd74bb11498
diff --git a/voltha-adapter-simulated/Chart.yaml b/voltha-adapter-simulated/Chart.yaml
index fff2b2c..e9378d7 100644
--- a/voltha-adapter-simulated/Chart.yaml
+++ b/voltha-adapter-simulated/Chart.yaml
@@ -17,7 +17,7 @@
 description: A Helm chart for Voltha Simulated Adaptyer 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.