cpufreq: ondemand: Introduce touch_load and touch_delay tunables

Introduce touch_load and touch_delay tunables that used to
boost frequency on touch.

Also remove unused input workqueue after drop of mpdecision.

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
cpufreq: ondemand: Export touch tunables to sysfs

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
cpufreq: ondemand: Fix checkpatch warnings

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
cpufreq: ondemand: Calculate the timer delay jiffies once

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
cpufreq: Use policy->util to keep CPU utilization

We will need this for dynamic hotplug driver

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
cpufreq: ondemand: Change default values for touch tunables

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>