cpufreq: CPU max. hardlimit v2.0a (Thanks Yank555.lu)

- fixed wakeup_kick_freq must be between screen on min and max (instead of screen on max and screen off max)

Thanx to zancum for reporting this !

New SysFs Interface :

* /sys/kernel/cpufreq_hardlimit/scaling_max_freq_screen_on (rw)
*
* set or show the real hard CPU max frequency limit when screen is on
*
* /sys/kernel/cpufreq_hardlimit/scaling_max_freq_screen_off (rw)
*
* set or show the real hard CPU max frequency limit when screen is off
*
* /sys/kernel/cpufreq_hardlimit/scaling_min_freq_screen_on (rw)
*
* set or show the real hard CPU min frequency limit when screen is on
*
* /sys/kernel/cpufreq_hardlimit/scaling_min_freq_screen_off (rw)
*
* set or show the real hard CPU min frequency limit when screen is off
*
* /sys/kernel/cpufreq_hardlimit/wakeup_kick_freq (rw)
*
* set or show the wakeup kick frequency (scaling_min for delay time)
*
* /sys/kernel/cpufreq_hardlimit/wakeup_kick_delay (rw)
*
* set or show the wakeup kick duration (in ms)
*
* /sys/kernel/cpufreq_hardlimit/touchboost_lo_freq (rw)
*
* set or show touchboost low frequency
*
* /sys/kernel/cpufreq_hardlimit/touchboost_hi_freq (rw)
*
* set or show touchboost high frequency
*
* /sys/kernel/cpufreq_hardlimit/userspace_dvfs_lock (rw)
*
* 0 = allow changes to scaling min/max
* 1 = ignore (don't apply, but don't return an error)
* 2 = refuse (don't apply, return EINVAL)
*
* /sys/kernel/cpufreq_hardlimit/available_frequencies (ro)
*
* display list of available CPU frequencies for convenience
*
* /sys/kernel/cpufreq_hardlimit/current_limit_max (ro)
*
* display current applied hardlimit for CPU max
*
* /sys/kernel/cpufreq_hardlimit/current_limit_min (ro)
*
* display current applied hardlimit for CPU min
*
* /sys/kernel/cpufreq_hardlimit/version (ro)
*
* display CPU freq hard limit version information