Fixes a regression introduced by 8892b791,
because set_window_pos is called before UpdateLayeredWindow, which calls
the driver's WindowPosChanged earlier.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51984Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>