Merge the UHID driver, backported from Linux 3.8.

Merge the UHID driver, backported from Linux 3.8.

The userspace HID driver is needed by the KK Bluetooth stack in order to
process input from Bluetooth keyboards.

Credit: This is almost an identical copy of the @plaguedbypenguins work
for @KonstaT fork of zte-kernel-msm7x27. Changes copied from
@kerberizer's fork
Ref:
https://github.com/kerberizer/android_kernel_sony_msm8x60/commit/2acf0de488ed052af54a9652d891e19e6771966f
Merge pull request #1 from ldeninski/cm-11.0

Merge the UHID driver, backported from Linux 3.8.