treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428

Based on 1 normalized pattern(s):

  this file is released under the gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 68 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/firmware/efi/efi.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * efi.c - EFI subsystem
  *
@@ -9,8 +10,6 @@
  * allowing the efivarfs to be mounted or the efivars module to be loaded.
  * The existance of /sys/firmware/efi may also be used by userspace to
  * determine that the system supports EFI.
- *
- * This file is released under the GPLv2.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

drivers/firmware/efi/runtime-wrappers.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * runtime-wrappers.c - Runtime Services function call wrappers
  *
@@ -19,8 +20,6 @@
  * Copyright (C) 1999-2002 Hewlett-Packard Co.
  * Copyright (C) 2005-2008 Intel Co.
  * Copyright (C) 2013 SuSE Labs
- *
- * This file is released under the GPLv2.
  */
 
 #define pr_fmt(fmt)	"efi: " fmt