V4L/DVB (8722): sms1xxx: fix typo in license header

This should have read, "GNU General Public License version 2"
rather than, "GNU General Public License version 3"

This was actually a typo mass-blunder -- this is not a change in licence,
as the code was always GPLv2.

Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/siano/sms-cards.h b/drivers/media/dvb/siano/sms-cards.h
index 83b39bc..c8f3da6 100644
--- a/drivers/media/dvb/siano/sms-cards.h
+++ b/drivers/media/dvb/siano/sms-cards.h
@@ -4,7 +4,7 @@
  *  Copyright (c) 2008 Michael Krufky <mkrufky@linuxtv.org>
  *
  *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 3 as
+ *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation;
  *
  *  Software distributed under the License is distributed on an "AS IS"