cpufreq: Import Smartmax

* Let's try Smartmax!

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Signed-off-by: Joao Paulo <joaolrpaulo@gmail.com>

Conflicts:
	drivers/cpufreq/Kconfig
	drivers/cpufreq/Makefile
	include/linux/cpufreq.h