treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91

Based on 1 normalized pattern(s):

  is free software you can redistribute it and or modify it under the
  terms of the gnu general public license as published by the free
  software foundation either version 2 or at your option any later
  version [drbd] is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details you should have received a
  copy of the gnu general public license along with [drbd] see the
  file copying if not write to the free software foundation 675 mass
  ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 16 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520075212.050796421@linutronix.de


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>