Adding project level license

Change-Id: I6c725673b5683218f69aeb704c1eb3c43cfeaef5
diff --git a/vfioveth b/vfioveth
index 7fb74a6..0f37779 100644
--- a/vfioveth
+++ b/vfioveth
@@ -1,5 +1,10 @@
 #!/bin/bash -x
 
+# Copyright 2022-present Open Networking Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
 set -o errexit
 set -o pipefail
 set -o nounset