libpng is currently loaded on the first attempt to access a PNG icon
or cursor. That creates a race condition that can deadlock the loader
in certain circumstances if LoadIcon or LoadCursor is called while the
loader lock is held, e.g. from a DllMain.
Signed-off-by: Tim Clem <tclem@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>