winpthreads: Add `__udivmoddi4()`

Like 431ac2a912708546cd7271332e9331399e66bc62 but this is for GCC 11.
It is identical to `__qdivrem()`.

Reference: https://sourceforge.net/p/mingw-w64/mailman/message/37276246/
Signed-off-by: Liu Hao <lh_mouse@126.com>