Kernel Configuration: misc

- Re-Enabled wifi power saver switch
- Added props for Hotplug governor
- Disabled Performance and Powersave governors

Change-Id: I603be0dc3449613df86f24875ce8bd43973cdb21
Hotplug Governor

Change-Id: I387d3a3dd0ea85175b269018046d0a620cfe1a5b