cpufreq/zzmoove: new tuneables, typing booster support, bug fixes

- added support for the typing booster.

- hotplug_limit has been renamed to hotplug_max_limit.
	changes now take effect instantly.

- added tuneable for hotplug_min_limit (0 = disabled)
	if above 0, will always keep this many cores online.
	changes take effect instantly.

- added tuneable for hotplug_lock (0 = disabled)
	if above 0, will always keep exactly this many cores online.
	changes take effect instantly.