Adding Kindle Fire TV controller mapper file and updating the Ouya mapper file

Hi Guys,

I use LibGDX for my Ouya game "Soc-Car" and I thought I would just share back some changes that I have made.

I recently went through the process of porting the game to the Kindle Fire TV and while I was there I decided it would be a good idea to create a mapper file similar to the Ouya one.

I know they are small changes but hopefully someone finds them useful.

Thanks for all the great work on LibGDX!
Brian