Aether-3088 change license to Apache-2.0

Change-Id: I42d7535e82065a8031119bee17594d3fb358a1e5
diff --git a/config-models/aether-2.0.x/files/yang/onf-priority-traffic-rule.yang b/config-models/aether-2.0.x/files/yang/onf-priority-traffic-rule.yang
index e73cdf7..4c8db55 100755
--- a/config-models/aether-2.0.x/files/yang/onf-priority-traffic-rule.yang
+++ b/config-models/aether-2.0.x/files/yang/onf-priority-traffic-rule.yang
@@ -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
 
 submodule onf-priority-traffic-rule {
   belongs-to onf-enterprise { prefix ent; }