cpufreq: unified governor and scaling min and max switching

governor scaling_min_freq and scaling_max_freq will be populated to all online cpus immediately

cpufreq: unified governor and scaling min and max switching

use related_cpus to apply correctly to new online cpus

Conflicts:
	arch/arm/mach-msm/cpufreq.c

cpufreq: block hotplugging during multi-cpu operations

cpufreq: dont apply multi-cpu values if not changed