mako_hotplug/load_stats: load_stats code already decreased iowait time from idle_time, so correct it. Also use the previous avg_code to calculate the current avg_load.

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Merge branch 'nightlies' of github.com:franciscofranco/mako into Purified.Kernel-test

Conflicts:
	arch/arm/kernel/mako_hotplug.c