Make Android app Amazon Fire TV Compatible

I have an Android TV App, I need the app to be made compatible for Amazon Fire TV so that i can publish the App in the store and have it work on Fire TV. I tried publishing but i was unable to publish for fire TV because of the following reasons; ****If you intend to target this device, you should ensure that your app: Works with Amazon controllers Scales up to the TV form factor Without controller support, your app will fail testing for this device and will delay launch on Amazon Appstore.****