Added CPUfreq governor 'wheatley'

Thanks to r_data for taking the time to fix all the build errors for the Nexus 4.
cpufreq: Add OndemandPLUS Gov

Signed-off-by: houst0nn <houstonn@gmail.com>

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

Conflicts:
	arch/arm/configs/d800_defconfig
	arch/arm/configs/d801_defconfig
	arch/arm/configs/d802_defconfig
	arch/arm/configs/d803_defconfig
	arch/arm/configs/ls980_defconfig
	arch/arm/configs/vs980_defconfig