msm: Support Under/Over Clock
-Disable some clocks
-286Mhz~1722Mhz

Signed-off-by: Seongmin Park <r_data@naver.com>

Conflicts:

	arch/arm/configs/cyanogenmod_e975_defconfig
	arch/arm/mach-msm/Kconfig
	arch/arm/mach-msm/acpuclock-8064.c