Clock Control Module

https://github.com/hno/uboot-allwinner/blob/lichee/lichee-dev-mmc/arch/arm/include/asm/arch-sunxi/clock.h https://github.com/amery/linux-allwinner/blob/allwinner-v3.0-android-v2/arch/arm/mach-sun4i/include/mach/ccmu_regs.h