VOL-2834 Support to deploy multiple adapters

Generate a unique instance id for each replica of the open-onu-adapter and
pass it as a parameter.

Change-Id: I2011860aa9ca85f106704f3f12eecd5c2da1786f
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index d40c7b2..13fe6b0 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -17,8 +17,8 @@
 description: A Helm chart for Voltha based on K8S resources in Voltha project
 icon: https://guide.opencord.org/logos/cord.svg
 
-version: 2.4.0-dev0
+version: 2.4.0
 
 # app version applies to multiple components with potentially different
 # container image versions
-appVersion: 2.3
+appVersion: 2.4