VOL-3298: VOLTHA2.4 release for voltha-helm-chart

Change-Id: I26abf722ce79ce0de162ed45ea6aad4b3fdcb08c
diff --git a/voltha-adapter-openonu/Chart.yaml b/voltha-adapter-openonu/Chart.yaml
index 4b30588..305b27b 100644
--- a/voltha-adapter-openonu/Chart.yaml
+++ b/voltha-adapter-openonu/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-openonu"
-version: 2.3.12
+version: "2.4.0"
 description: "A Helm chart for Voltha OpenONU Adapter"
 keywords:
   - "onf"
@@ -33,4 +33,4 @@
 
 # appVersion refers to multiple components with potentially different
 # container image versions.
-appVersion: 2.4
+appVersion: "2.4"