cosmetic: Update copyright statement, license notice and SPDX
Some of our files didn't have a copyright notice at all, let's add
it. Also, update the notices in other files and ensure a SPDX
identifier is present in all but the most trivial files.
Change-Id: If7fa19ce484b415bc645e39b3d0d666b44b5f0fd
diff --git a/mgw/MGCP_Test.ttcn b/mgw/MGCP_Test.ttcn
index ec3070e..31c2a1d 100644
--- a/mgw/MGCP_Test.ttcn
+++ b/mgw/MGCP_Test.ttcn
@@ -1,3 +1,14 @@
+/* MGW (Media Gateway) test suite in TTCN-3
+ * (C) 2017-2018 Harald Welte <laforge@gnumonks.org>
+ * (C) 2018-2019 sysmocom - s.f.m.c. GmbH
+ * All rights reserved.
+ *
+ * Released under the terms of GNU General Public License, Version 2 or
+ * (at your option) any later version.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
module MGCP_Test {
import from Osmocom_Types all;
import from MGCP_Types all;