treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 380

Based on 1 normalized pattern(s):

  license as part of this driver was derived from the slram c driver
  it falls under the same license which is gnu general public license
  v2

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 <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
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/20190531081037.083494189@linutronix.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/mtd/devices/pmc551.c

+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * PMC551 PCI Mezzanine Ram Device
  *
@@ -5,11 +6,6 @@
  *	Mark Ferrell <mferrell@mvista.com>
  *	Copyright 1999,2000 Nortel Networks
  *
- * License:
- *	As part of this driver was derived from the slram.c driver it
- *	falls under the same license, which is GNU General Public
- *	License v2
- *
  * Description:
  *	This driver is intended to support the PMC551 PCI Ram device
  *	from Ramix Inc.  The PMC551 is a PMC Mezzanine module for