license: gsup: libosmogsm requires GPL, not AGPL; say 'sysmocom'

The copyright in gsup.h differed from the one in gsup.c: gsup.c names the GNU
Affero GPL, gsup.h only the GNU GPL. Change both to GPL-v2-or-later.

In gsup.c/h's copyright notice, 'sysmocom' should be spelled lower case.

Change-Id: Ia5748c275501889b9086aef7d20ccb5c9edb8031
diff --git a/include/osmocom/gsm/gsup.h b/include/osmocom/gsm/gsup.h
index ed1ef2a..636a112 100644
--- a/include/osmocom/gsm/gsup.h
+++ b/include/osmocom/gsm/gsup.h
@@ -1,6 +1,6 @@
 /* Osmocom Subscriber Update Protocol message encoder/decoder */
 
-/* (C) 2014 by Sysmocom s.f.m.c. GmbH, Author: Jacob Erlbeck
+/* (C) 2014 by sysmocom s.f.m.c. GmbH, Author: Jacob Erlbeck
  * (C) 2016 by Harald Welte <laforge@gnumonks.org>
  * All Rights Reserved
  *
diff --git a/src/gsm/gsup.c b/src/gsm/gsup.c
index c90244a..b213e30 100644
--- a/src/gsm/gsup.c
+++ b/src/gsm/gsup.c
@@ -1,7 +1,7 @@
 /* Osmocom Subscriber Update Protocol message encoder/decoder */
 
 /*
- * (C) 2014 by Sysmocom s.f.m.c. GmbH
+ * (C) 2014 by sysmocom s.f.m.c. GmbH
  * (C) 2015 by Holger Hans Peter Freyther
  * (C) 2016 by Harald Welte <laforge@gnumonks.org>
  * All Rights Reserved
@@ -9,16 +9,16 @@
  * Author: Jacob Erlbeck
  *
  * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU Affero General Public License
+ * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */