Add keylayout for Xbox controller over USB

Without a custom layout, this controller has incorrect mappings for the
right stick and gas/break axes.
Add a custom layout to ensure all axes and keys are mapped properly.

Bug: 157852643
Test: connected controller to the phone and verified mappings using the
controllerTester app

Change-Id: I1f65fe973652e25fab5e6e29ab598eee54e33e06