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

Change-Id: If5c78f555fb737a18a3ae4c216ea3e2630b101bc
diff --git a/.gitreview b/.gitreview
index 0b5a88a..637e7ca 100644
--- a/.gitreview
+++ b/.gitreview
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
 [gerrit]
 host=gerrit.opencord.org
 port=29418