Update All EVENT_OBJ_GFX References

Didn't realize that this needed to be done as well for renaming OW sprites. The event_objects.h file has had its corresponding defines renamed and all references in all files to those defines have been relabeled.

src/event_object_movement.c

@@ -2024,7 +2024,7 @@ const struct EventObjectGraphicsInfo *GetEventObjectGraphicsInfo(u8 graphicsId)
     }
     if (graphicsId >= NUM_OBJECT_GRAPHICS_INFO)
     {
-        graphicsId = EVENT_OBJ_GFX_LITTLE_BOY_1;
+        graphicsId = EVENT_OBJ_GFX_NINJA_BOY;
     }
     return gEventObjectGraphicsInfoPointers[graphicsId];
 }