treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 99

Based on 4 normalized pattern(s):

  this program 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 of the license or at
  your option any later version neither [wim] [van] [sebroeck] nor
  [iguana] [vzw] admit liability nor provide warranty for any of this
  software this material is provided as is and at no charge

  this program 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 of the license or at
  your option any later version neither [kernel] [concepts] nor [nils]
  [faerber] admit liability nor provide warranty for any of this
  software this material is provided as is and at no charge

  this program 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 of the license or at
  your option any later version neither [oleg] [drokin] nor
  [ixcelerator] [com] admit liability nor provide warranty for any of
  this software this material is provided as is and at no charge

  this program 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 of the license or at
  your option any later version neither [alan] [cox] [cymrunet] [ltd]
  [wim] [van] [sebroeck] nor [iguana] [vzw] admit liability nor
  provide warranty for any of this software this material is provided
  as is and at no charge

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 10 file(s).

Bucket: COX

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>