power/main: Get rid of DVFS limit

Signed-off-by: cocafe <cocafehj@gmail.com>
sec-common: Shut the f*ck up

Signed-off-by: cocafe <cocafehj@gmail.com>
main/power: Optimize max limit handling

Signed-off-by: cocafe <cocafehj@gmail.com>
cpufreq: Message style