Implement ck1 patchset, fixed build with it

Conflicts:
	arch/arm/boot/compressed/piggy.xzkern
	drivers/cpufreq/cpufreq.c
	include/linux/sched.h

Conflicts:
	drivers/cpufreq/cpufreq_conservative.c
	include/linux/sched.h
	include/linux/swap.h
	kernel/Kconfig.hz