PM: devfreq: Add sysfs nodes for devfreq governors

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
devfreq: fix merge derp.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
mako_hotplug: we can live with 80% threshold.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>