treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 402

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the smems of the gnu general public license as published by
  the free software foundation version 2 of the license

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 5 file(s).
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Reviewed-by: NArmijn Hemel <armijn@tjaldur.nl>
Reviewed-by: NAllison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190111.946565886@linutronix.deSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/char/ttyprintk.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/drivers/char/ttyprintk.c
  *
  *  Copyright (C) 2010  Samo Pogacnik
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the smems of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 /*

drivers/char/xillybus/xillybus.h

+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * linux/drivers/misc/xillybus.h
  *
  * Copyright 2011 Xillybus Ltd, http://xillybus.com
  *
  * Header file for the Xillybus FPGA/host framework.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the smems of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #ifndef __XILLYBUS_H

drivers/char/xillybus/xillybus_core.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/drivers/misc/xillybus_core.c
  *
@@ -10,10 +11,6 @@
  * file in the host. The number of such pipes and their attributes are
  * set up on the logic. This driver detects these automatically and
  * creates the device files accordingly.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the smems of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/list.h>

drivers/char/xillybus/xillybus_of.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/drivers/misc/xillybus_of.c
  *
  * Copyright 2011 Xillybus Ltd, http://xillybus.com
  *
  * Driver for the Xillybus FPGA/host framework using Open Firmware.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the smems of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/module.h>

drivers/char/xillybus/xillybus_pcie.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * linux/drivers/misc/xillybus_pcie.c
  *
  * Copyright 2011 Xillybus Ltd, http://xillybus.com
  *
  * Driver for the Xillybus FPGA/host framework using PCI Express.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the smems of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/module.h>