Revert "dts: introduce 268MHz clock"

This reverts commit 6010c7ac3003acfd34a8241540d59957e9476412.
Revert "OC/UV interface"

This reverts commit 2b4b27cc6bafb37bb423500ea296875c2a797722.

Conflicts:
	arch/arm/configs/cm_m8_defconfig
	arch/arm/mach-msm/Kconfig
	drivers/cpufreq/cpufreq.c