auto_hotplug: Increase sampling time to decrease the number of onlines/offlines; tweak the values for onlining and offlining a single core; instead of staying 2 seconds without offlining cores (after they are either all online or it called boostpulse), they now stay for 5 seconds to reduce onlining/offlining, and it also provides a bigger boost if the device needs that extra burst of performance power for at least those 5 seconds.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
auto_hotplug: make some constants to be exported to userspace to let users customize them for their own usages.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
auto_hotplug.c: just hardcode the value for onlining all the cpus.

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