leds: triggers: make the MODULE_LICENSE string match the actual license

These files are licensed under GPL version 2 only. So use "GPL v2"
instead of "GPL" (which means v2 or later).

Also remove an empty (but commented) line at the end of the license
header which nicely proves in the context that the drivers are really v2
only :-)

Signed-off-by: Uwe Kleine-König <[e-mail]>
Signed-off-by: Jacek Anaszewski <[e-mail]>

drivers/leds/trigger/ledtrig-activity.c

···
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
+
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/kernel_stat.h>
···
 
 MODULE_AUTHOR("Willy Tarreau <[e-mail]>");
 MODULE_DESCRIPTION("Activity LED trigger");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");

drivers/leds/trigger/ledtrig-camera.c

···
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
···
 
 MODULE_DESCRIPTION("LED Trigger for Camera Flash/Torch Control");
 MODULE_AUTHOR("Milo Kim");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");

drivers/leds/trigger/ledtrig-default-on.c

···
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
···
 
 MODULE_AUTHOR("Nick Forbes <[e-mail]>");
 MODULE_DESCRIPTION("Default-ON LED trigger");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");

drivers/leds/trigger/ledtrig-gpio.c

···
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
···
 
 MODULE_AUTHOR("Felipe Balbi <[e-mail]>");
 MODULE_DESCRIPTION("GPIO LED trigger");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");

drivers/leds/trigger/ledtrig-heartbeat.c

···
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
···
 
 MODULE_AUTHOR("Atsushi Nemoto <[e-mail]>");
 MODULE_DESCRIPTION("Heartbeat LED trigger");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");

drivers/leds/trigger/ledtrig-timer.c

···
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
···
 
 MODULE_AUTHOR("Richard Purdie <[e-mail]>");
 MODULE_DESCRIPTION("Timer LED trigger");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");