HOTPLUG: first step to add min_cpus_online for alucard and intelli.

@Alucard24 @neobuddy89 @myfluxi

I need your help to implement min cpus online to both hotplugs.

Idea is to let user to set 2 cores or more online non stop till screen is off.
then release to min = 1 (core 0)

I have added the values and sysfs, and tried to make it work but made a mess :)
that was funny! crashed kernel many times...

in some point it's worked but not as I expected... for alucard hotplug I lost my head!
it's too complex for me... :)

Please help me to finish the idea, in msm hotplug it's working great.

Thanks.
alucard cpu governor: removed useless checking code
darkness, nightmare cpu governors: removed useless checking code
alucard_hotplug ver2: optimized.
alucard_hotplug ver2: suspended as bool instead of unsigned int.
alucard_hotplug: schedule delayed work on hotplugging cpu
alucard_hotplug: implemented min_cpus_online for @Dorimanx, my dear friend.

Dorimanx note:
I made full SYNC with Alucard24 source.

Big thanks @Alucard24 for this change :)
alucard_hotplug: hotplug_onoff declared as bool
alucard cpu governor: use spinlock instead of mutex.