thermal/drivers/cpu_cooling: Fixup the header and copyright

The copyright format does not conform to the format requested by
Linaro: https://wiki.linaro.org/Copyright

Fix it.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

drivers/thermal/cpu_cooling.c

@@ -2,9 +2,11 @@
  *  linux/drivers/thermal/cpu_cooling.c
  *
  *  Copyright (C) 2012	Samsung Electronics Co., Ltd(http://www.samsung.com)
- *  Copyright (C) 2012  Amit Daniel <amit.kachhap@linaro.org>
  *
- *  Copyright (C) 2014  Viresh Kumar <viresh.kumar@linaro.org>
+ *  Copyright (C) 2012-2018 Linaro Limited.
+ *
+ *  Authors:	Amit Daniel <amit.kachhap@linaro.org>
+ *		Viresh Kumar <viresh.kumar@linaro.org>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *  This program is free software; you can redistribute it and/or modify