Added CPUfreq governor 'wheatley'

Thanks to r_data for taking the time to fix all the build errors for the Nexus 4.
acpufreq: add SmartMAX governor thanks to MAXWEN

Conflicts:

	drivers/cpufreq/Makefile
	include/linux/cpufreq.h

Signed-off-by: Braydon Saporito <altabraydon@gmail.com>