Added new Kindle devices for inverted orientation

Amazon released new Kindle devices that cause MonoGame games to run upside down.

To give some background on the issue, all kindles since the Kindle Fire HD report their landscape right and landscape left orientations opposite of standard Android devices. Info on this [here](https://forums.developer.amazon.com/forums/message.jspa?messageID=1606). I can't find the original docs by Amazon, but they recommended checking `Android.OS.Build.Model` and inverting your game...

Dean Ellis originally put in this fix based on some changes we used in Draw a Stickman: EPIC.

This is the updated list we are using now in [Battlepillars for Amazon](http://www.amazon.com/Hitcents-Battlepillars/dp/B00GGNF6Y0/ref=sr_1_1?s=mobile-apps&ie=UTF8&qid=1384193019&sr=1-1&keywords=battlepillars). Our app was just approved through their testing process:

`RESULTS: YOUR APP CLEARED TESTING FOR ALL TARGETED DEVICES
Non-Amazon Android (Samsung - 4.2.X )	PASS
Fire HDX 7 WAN (3rd Gen)	PASS	
Kindle Fire HD 7 (3rd Gen)	PASS	
Fire HD 8.9 WAN (2nd Gen)	PASS	
Fire HDX 7 WiFi (3rd Gen)	PASS	
Fire HD 8.9 Wifi (2nd Gen)	PASS	
Fire HDX 8.9 WAN (3rd Gen)	PASS	
Fire HDX 8.9 WiFi (3rd Gen)	PASS	
Kindle Fire (1st Gen)	PASS	
Kindle Fire (2nd Gen)	PASS	
Kindle Fire HD 7 (2nd Gen)	PASS`