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/bsc/BSC_Tests_LCLS.ttcn b/bsc/BSC_Tests_LCLS.ttcn
index f2b9b5d..6087133 100644
--- a/bsc/BSC_Tests_LCLS.ttcn
+++ b/bsc/BSC_Tests_LCLS.ttcn
@@ -7,6 +7,8 @@
* 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
+ *
* This test suite tests OsmoBSC while emulating both multiple BTS + MS as
* well as the MSC. See README for more details.
*