Flush display events after dispatching.

NB: speedup in fps.

Signed-off-by: Chris Michael <cp.michael@samsung.com>

src/bin/engine_wayland_shm.c

@@ -92,6 +92,7 @@ void
 engine_wayland_shm_loop(void)
 {
    assert(wl_display_dispatch_pending(wl.display) != -1);
+   wl_display_flush(wl.display);
 }