Update charts to 2.15 for master branch

Change-Id: I8ba1c6a587d86cf4ea6c9dd8034026658c8b6e0a
Signed-off-by: Akash Reddy Kankanala <akash.kankanala@radisys.com>
diff --git a/voltha-adapter-openolt/Chart.yaml b/voltha-adapter-openolt/Chart.yaml
index 106c678..abff3ae 100644
--- a/voltha-adapter-openolt/Chart.yaml
+++ b/voltha-adapter-openolt/Chart.yaml
@@ -1,4 +1,4 @@
-# Copyright 2019-2024 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2019-2025 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,9 +15,9 @@
 apiVersion: "v1"
 name: "voltha-adapter-openolt"
 
-## Chart version for package:
+## Chart version for package 'voltha-adapter-openolt'
 ##   Increment when Chart.yaml changes
-version: "2.12.8"
+version: "2.15.0"
 description: "A Helm chart for Voltha OpenOLT Adapter"
 keywords:
   - "onf"