Switch from member-only license to apache

Change-Id: I7661615a85e60c2aaae1d4b317e28448fda061b7
diff --git a/monitoring/grafana-aether/templates/NOTES.txt b/monitoring/grafana-aether/templates/NOTES.txt
index 2c966b5..aec391f 100644
--- a/monitoring/grafana-aether/templates/NOTES.txt
+++ b/monitoring/grafana-aether/templates/NOTES.txt
@@ -1,6 +1,6 @@
 {{/*
 Copyright 2020-present Open Networking Foundation
-SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+SPDX-License-Identifier: Apache-2.0
 */}}
 
 Thank you for installing {{ .Chart.Name }}.