Removed useless cpu frequency step. 162 MHz and 270 MHz.
Added USB HID On/OFF control! you need Android App READ MORE
https://play.google.com/store/apps/details?id=remote.hid.keyboard.client
App name USB Keyboard# (use "git pull" to merge the remote branch into
yours).
Thanks to @Dorimanx
Merge remote-tracking branch 'upstream/aosp-4.4' into aosp-4.4