Fix typo in generated Yoga classes

Reviewed By: emilsjolander

Differential Revision: D4416273

fbshipit-source-id: fa3f87b86560121e1186cdc0ee295eb052fb3a97

java/com/facebook/yoga/YogaLogLevel.java

@@ -36,7 +36,7 @@ public enum YogaLogLevel {
       case 2: return INFO;
       case 3: return DEBUG;
       case 4: return VERBOSE;
-      default: throw new IllegalArgumentException("Unkown enum value: " + value);
+      default: throw new IllegalArgumentException("Unknown enum value: " + value);
     }
   }
 }