enable ARCH_POWER
sched: Add sysinterface for GENTLE_FAIR_SLEEPERS

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
 sched: enable aggressive multi-core power savings
 add smartmax governor
cpufreq: smartmax: merged with latest version - thanks @maxwen
cpufreq: smartmax: remove early suspend and tuning