misc: Once again go from "On Waves" to "On-Waves"..

Try to get the company name of our sponsor right...
diff --git a/openbsc/src/gsm_04_11.c b/openbsc/src/gsm_04_11.c
index 147ecab..2931026 100644
--- a/openbsc/src/gsm_04_11.c
+++ b/openbsc/src/gsm_04_11.c
@@ -5,7 +5,7 @@
 /* (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de>
  * (C) 2009 by Harald Welte <laforge@gnumonks.org>
  * (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2010 by On Waves
+ * (C) 2010 by On-Waves
  *
  * All Rights Reserved
  *