treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348

Based on 1 normalized pattern(s):

release under the terms of the gnu general public license version 2
see the file copying

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: Kate Stewart <[e-mail]>
Reviewed-by: Armijn Hemel <[e-mail]>
Reviewed-by: Alexios Zavras <[e-mail]>
Reviewed-by: Allison Randal <[e-mail]>
Cc: [e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/block/umem.h

···
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /*
  * This file contains defines for the
···
  * family PCI Memory Module with Battery Backup.
  *
  * Copyright Micro Memory INC 2001.  All rights reserved.
- * Release under the terms of the GNU GENERAL PUBLIC LICENSE version 2.
- * See the file COPYING.
  */
 
 #ifndef _DRIVERS_BLOCK_MM_H