AETHER-3105 Move to Apache-2.0 license

Change-Id: Icd93e93e221ad6f8ca7909f7028507d52800e623
diff --git a/Makefile b/Makefile
index 2fc7bef..84f11fa 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # Copyright 2018-present Open Networking Foundation
 #
-# SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0
+# SPDX-License-Identifier: Apache-2.0
 
 SHELL		:= /bin/bash
 BUILD		?= /tmp/build