net/qlge: Convert to SPDX license identifiers

All files related to this driver contain the following notice:

  See LICENSE.qlge for copyright and licensing details.

LICENSE.qlge can be found in
Documentation/networking/device_drivers/qlogic/. The file contains:

  - A copyright notice

    This copyright notice is redundant as all files contain the same
    copyright notice already

  - A license notice

    You may modify and redistribute the device driver code under the
    GNU General Public License (a copy of which is attached hereto as
    Exhibit A) published by the Free Software Foundation (version 2).

    This can be replaced with the corresponding SPDX license identifier
    (GPL-2.0-only) in the source files which reference this license
    file.

  - The full GPLv2 license text

    A redundant copy of LICENSES/preferred/GPL-2.0

Remove the notices and add the SPDX license identifier GPL-2.0-only to the
source files.

Finally remove the now redundant LICENSE.qlge file.

Reviewed-by: Richard Fontana <[email protected]>
Reviewed-by: Jilayne Lovejoy <[email protected]>
Reviewed-by: Alexios Zavras <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Lukas Bulwahn <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: KAGA-KOKO

Documentation/networking/device_drivers/qlogic/LICENSE.qlge

@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * QLogic QLA41xx NIC HBA Driver
  * Copyright (c)  2003-2006 QLogic Corporation
- *
- * See LICENSE.qlge for copyright and licensing details.
  */
 #ifndef _QLGE_H_
 #define _QLGE_H_

drivers/staging/qlge/qlge.h

@@ -1,7 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * QLogic qlge NIC HBA Driver
  * Copyright (c)  2003-2008 QLogic Corporation
- * See LICENSE.qlge for copyright and licensing details.
  * Author:     Linux qlge network device driver by
  *                      Ron Mercer <[email protected]>
  */