various log cleanups

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
hotplug: delete deprecated earlysuspend handler

There is no proper support of earlysuspend in this kernel,
so better delete this stuff until there is a better option
available.
Also adjusting a few tunables.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
hotplug: add tunable sysfs entries

Allowing to change the current sampling_rate as well
as the first threshold (single core) and second threshold
(all cores).
Actual path will be: /sys/kernel/hotplug_control

Signed-off-by: Blechd0se <alex.christ@hotmail.de>