staging: ks7010: add SPDX identifiers to all files

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Fix up the all of the staging ks7010 files to have a proper SPDX
identifier, based on the license text in the file itself.  The SPDX
identifier is a legally binding shorthand, which can be used instead of
the full boiler plate text.

Extra GPL text wording can be removed as it is no longer needed at all.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ks7010/ks7010_sdio.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  *   Driver for KeyStream, KS7010 based SDIO cards.
  *
  *   Copyright (C) 2006-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
  *   Copyright (C) 2016 Sang Engineering, Wolfram Sang
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #include <linux/atomic.h>

drivers/staging/ks7010/ks7010_sdio.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Driver for KeyStream, KS7010 based SDIO cards.
  *
  *   Copyright (C) 2006-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 #ifndef _KS7010_SDIO_H
 #define _KS7010_SDIO_H

drivers/staging/ks7010/ks_hostif.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  *   Driver for KeyStream wireless LAN cards.
  *
  *   Copyright (C) 2005-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #include <linux/if_arp.h>

drivers/staging/ks7010/ks_hostif.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Driver for KeyStream wireless LAN
  *
  *   Copyright (c) 2005-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #ifndef _KS_HOSTIF_H_

drivers/staging/ks7010/ks_wlan.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Driver for KeyStream IEEE802.11 b/g wireless LAN cards.
  *
  *   Copyright (C) 2006-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #ifndef _KS_WLAN_H

drivers/staging/ks7010/ks_wlan_ioctl.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Driver for KeyStream 11b/g wireless LAN
  *
  *   Copyright (c) 2005-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #ifndef _KS_WLAN_IOCTL_H

drivers/staging/ks7010/ks_wlan_net.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  *   Driver for KeyStream 11b/g wireless LAN
  *
  *   Copyright (C) 2005-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #include <linux/atomic.h>

drivers/staging/ks7010/michael_mic.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  *   Driver for KeyStream wireless LAN
  *
  *   Copyright (C) 2005-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 #include <asm/unaligned.h>

drivers/staging/ks7010/michael_mic.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Driver for KeyStream wireless LAN
  *
  *   Copyright (C) 2005-2008 KeyStream Corp.
  *   Copyright (C) 2009 Renesas Technology Corp.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License version 2 as
- *   published by the Free Software Foundation.
  */
 
 /* MichaelMIC routine define */