Revert "Add new CPU Gorvenor and remove error I/O Schedulers"

This reverts commit 7762937431a54c4e8585b5b59b4bf95497e5bfec.

Conflicts:

	block/Kconfig.iosched
	block/row-iosched.c
	include/linux/cpufreq.h
update c8813q_defconfig
radio-tavarua: update to kk_2.7-stable