Get Platform Name node displays incorrect platform name on tvOS

GetPlatform node displays the incorrect platform name for tvOS.

1. Create First Person Blueprint project, "Desktop/Console", "Max Quality", "No Starter Content"
2. Open the default level blueprint
3. Add a "Get Platform Name", hook it to "Print", and hook execution up to BeginPlay.
4. Import a development certificate and provision.
5. Launch on AppleTV

Result: The string prints off 'iOS' instead of 'tvOS'.
Expected Result: For the print string to display the proper platform which the project is deployed on.