Add autosmp hotplug-algorithm by mrg666
autosmp: Adjust thresholds for better battery life

*With the previous thresholds, Ondemand's 2nd phase freq was triggering several unnecessary hotplug events
*Made overall values much less strict for smarter hotplugging and much better battery life

Signed-off-by: Sultanxda <sultanxda@gmail.com>
Sultan_defconfig: Enable autosmp
cpufreq_ondemand: Add 2-phase feature
pyramid: Set Ondemand 2-phase freq to 1080MHz