[css-font-loading] FontFaceSet should use FontFaceSetLoadStatus, duh.

Author: tabatkins

css-font-loading/Overview.bs

@@ -366,7 +366,7 @@ The <code>FontFaceSet</code> Interface</h2>
 			readonly attribute Promise&lt;FontFaceSet> ready;
 
 			// loading state, "loading" while one or more fonts loading, "loaded" otherwise
-			readonly attribute FontFaceLoadStatus status;
+			readonly attribute FontFaceSetLoadStatus status;
 		};
 
 		FontFaceSet implements EventTarget;