'cpu_dev' is used by only one function, get_static_power(), and it
wouldn't be time consuming to get the cpu device structure within it.
This would help removing cpu_dev from struct cpufreq_cooling_device.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: NLukasz Luba <lukasz.luba@arm.com>
Tested-by: NLukasz Luba <lukasz.luba@arm.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>