treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434

Based on 1 normalized pattern(s):

under gplv2 only

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: Armijn Hemel <[e-mail]>
Cc: [e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/pinctrl/pinctrl-at91.c

···
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * at91 pinctrl driver based on at91 pinmux core
  *
  * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <[e-mail]>
- *
- * Under GPLv2 only
  */
 
 #include <linux/clk.h>