arm: vybrid: Update the license string

Since SPDX license is already there, drop the full one.

Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/arm/dts/vf-colibri.dtsi

@@ -2,11 +2,6 @@
  * Copyright 2014 Toradex AG
  *
  * SPDX-License-Identifier:     GPL-2.0+ or X11
- *
- * 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.
  */
 #include "vf.dtsi"
 

arch/arm/dts/vf.dtsi

@@ -2,11 +2,6 @@
  * Copyright 2013 Freescale Semiconductor, Inc.
  *
  * SPDX-License-Identifier:     GPL-2.0+ or X11
- *
- * 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.
  */
 /include/ "skeleton.dtsi"
 

arch/arm/dts/vf500-colibri.dts

@@ -2,11 +2,6 @@
  * Copyright 2014 Toradex AG
  *
  * SPDX-License-Identifier:     GPL-2.0+ or X11
- *
- * 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.
  */
 
 /dts-v1/;

arch/arm/dts/vf610-colibri.dts

@@ -2,11 +2,6 @@
  * Copyright 2014 Toradex AG
  *
  * SPDX-License-Identifier:     GPL-2.0+ or X11
- *
- * 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.
  */
 
 /dts-v1/;