[PATCH 0/1] MR10989: winex11: Add missing const in langid_from_xkb_layout (GCC).

[Alex Henrie (＠alexhenrie)]

This fixes the following warning:

```
../wine/dlls/winex11.drv/keyboard.c: In function ‘langid_from_xkb_layout’:
../wine/dlls/winex11.drv/keyboard.c:1694:11: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
 1694 |     entry = bsearch( layout, layout_ids, ARRAY_SIZE(layout_ids), sizeof(*layout_ids), layout_id_map_cmp );
      |           ^
```

-- 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10989