media: siano: add SPDX markups

As we're now using SPDX identifiers, add the proper SPDX,
better identifying the licenses whith apply to the source code.

As we're now using the short license, it doesn't make sense to
keep the original license text.

Also, fix MODULE_LICENSE to properly identify GPL v2
at the Siano's common driver. Some codes there are licensed
on GPL v2 or latter, while others are GPL v2 only. So,
in order to reflect the common license that applies to
everything, the module itself should be GPLv2 only.

While here, use the Kernel's coding style for the comments
with copyright info.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/common/siano/smsdvb-debugfs.c

-/***********************************************************************
- *
- * Copyright(c) 2013 Mauro Carvalho Chehab
- *
- * This program is free software: you can redistribute it and/or modify
- * 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- ***********************************************************************/
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright(c) 2013 Mauro Carvalho Chehab
 
 #include "smscoreapi.h"
 

drivers/media/common/siano/smsir.c

-/****************************************************************
-
- Siano Mobile Silicon, Inc.
- MDTV receiver kernel modules.
- Copyright (C) 2006-2009, Uri Shkolnik
-
- Copyright (c) 2010 - Mauro Carvalho Chehab
-	- Ported the driver to use rc-core
-	- IR raw event decoding is now done at rc-core
-	- Code almost re-written
-
- This program is free software: you can redistribute it and/or modify
- 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
- ****************************************************************/
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Siano Mobile Silicon, Inc.
+// MDTV receiver kernel modules.
+// Copyright (C) 2006-2009, Uri Shkolnik
+//
+// Copyright (c) 2010 - Mauro Carvalho Chehab
+//	- Ported the driver to use rc-core
+//	- IR raw event decoding is now done at rc-core
+//	- Code almost re-written
 
 
 #include "smscoreapi.h"

drivers/media/common/siano/smsir.h

-/****************************************************************
-
-Siano Mobile Silicon, Inc.
-MDTV receiver kernel modules.
-Copyright (C) 2006-2009, Uri Shkolnik
-
- Copyright (c) 2010 - Mauro Carvalho Chehab
-	- Ported the driver to use rc-core
-	- IR raw event decoding is now done at rc-core
-	- Code almost re-written
-
-This program is free software: you can redistribute it and/or modify
-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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-****************************************************************/
+/*
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Siano Mobile Silicon, Inc.
+ * MDTV receiver kernel modules.
+ * Copyright (C) 2006-2009, Uri Shkolnik
+ *
+ * Copyright (c) 2010 - Mauro Carvalho Chehab
+ *	- Ported the driver to use rc-core
+ *	- IR raw event decoding is now done at rc-core
+ *	- Code almost re-written
+ */
 
 #ifndef __SMS_IR_H__
 #define __SMS_IR_H__