Aether-3088 change license to Apache-2.0

Change-Id: I42d7535e82065a8031119bee17594d3fb358a1e5
diff --git a/aether-roc-websocket/templates/NOTES.txt b/aether-roc-websocket/templates/NOTES.txt
index c92f7ca..1df8129 100644
--- a/aether-roc-websocket/templates/NOTES.txt
+++ b/aether-roc-websocket/templates/NOTES.txt
@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2021 Open Networking Foundation
 #
-# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+# SPDX-License-Identifier: Apache-2.0
 
 Thank you for installing {{ .Chart.Name }} Helm chart.