treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 221

Based on 1 normalized pattern(s):

gpl version 2

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 1 file(s).

Signed-off-by: Thomas Gleixner <[e-mail]>
Reviewed-by: Allison Randal <[e-mail]>
Reviewed-by: Alexios Zavras <[e-mail]>
Reviewed-by: Steve Winslow <[e-mail]>
Cc: [e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

include/linux/apm-emulation.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
 /* -*- linux-c -*-
  *
  * (C) 2003 [e-mail]
- *
- * GPL version 2
  *
  * based on arch/arm/kernel/apm.c
  * factor out the information needed by architectures to provide