fix up XBox 360 controller wireless receiver

Unfortunately the [xbox 360 controller wireless receiver](http://support.xbox.com/en-US/xbox-on-other-devices/connections/xbox-360-wireless-gaming-receiver-windows) is not yet fully supported by Android. At present Nvidia does support it with the SHIELD so this code will work fine there (tested) and may work on other 3rd party roms that have the proper key layout file, /system/usr/keylayout/Vendor_045e_Product_0719.kl  I have a pull request in to AOSP to include this file so hopefully this controller receiver will work with all devices in the future.