mako_hotplug: we should care about very high load spikes so when the load
is 100% the core that is next in line is onlined, no questions asked.
It won't go through the 1s minimum time for a core to be online before
hotplug though.

hackbench -p -T:
Before: 1.816sec
After: 0.917sec

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: Joao Paulo <joaolrpaulo@gmail.com>
mako_hotplug: code revision && clean up some problematic code. Thanks @franciscofranco

Signed-off-by: Joao Paulo <joaolrpaulo@gmail.com>