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

Change-Id: I031b31427f78d0c238342124638327fcc933ea29
diff --git a/dbuf/.helmignore b/dbuf/.helmignore
index c687fff..4ad6621 100644
--- a/dbuf/.helmignore
+++ b/dbuf/.helmignore
@@ -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
 
 # Patterns to ignore when building packages.
 # This supports shell glob matching, relative path matching, and