treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 493

Based on 1 normalized pattern(s):

  based on gpl ed 2 6 kernel sources [c] [marvell] [international]
  [ltd] this file is licensed under the terms of the gnu general
  public license version 2 this program is licensed as is without any
  warranty of any kind whether express or implied

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).

Bucket: ASIS-4

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

diff --git a/drivers/irqchip/irq-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
index e4550e9..55e50e8 100644
--- a/drivers/irqchip/irq-dw-apb-ictl.c
+++ b/drivers/irqchip/irq-dw-apb-ictl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Synopsys DW APB ICTL irqchip driver.
  *
@@ -5,10 +6,6 @@
  *
  * based on GPL'ed 2.6 kernel sources
  *  (c) Marvell International Ltd.
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/io.h>