Efficient loading of chunks now and PSP is slighty more optimized

src/dusk/rpg/rpg.c

@@ -77,6 +77,8 @@ errorret_t rpgUpdate(void) {
     }
   #endif
 
+  errorChain(mapWaitForChunks());
+
   // TODO: Do not update if the scene is not the map scene?
   mapUpdate();