Added CPUfreq governor 'wheatley'

Thanks to r_data for taking the time to fix all the build errors for the Nexus 4.
Sound Control: Sound control for WCD93xx codec

Fully GPL'ed version.

Signed-off-by: faux123 <reioux@gmail.com>
Sound Control: Added headphone poweramp controls

bump version to 2.1 to reflec this new addition

Signed-off-by: Paul Reioux <reioux@gmail.com>
ARM: add auto hotplug driver
auto_hotplug: enable the min_online_cpus value

Use a module_param_cb to set the minimum number of online CPUs when the screen is on.

The values are between 1-4.

usage:
echo '1' > /sys/module/auto_hotplug/parameters/min_online_cpus
auto_hotplug: some tweaks

Several tweaks to try to improve battery life.