Change license from ONF-Member-Only to Apache-2.0

Change-Id: I031b31427f78d0c238342124638327fcc933ea29
diff --git a/dbuf/values.yaml b/dbuf/values.yaml
index f0408b9..e2cd64e 100644
--- a/dbuf/values.yaml
+++ b/dbuf/values.yaml
@@ -1,5 +1,5 @@
 # Copyright 2021-present Open Networking Foundation
-# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+# SPDX-License-Identifier: Apache-2.0
 
 image:
   repository: registry.aetherproject.org/tost/dbuf