[PATCH 0/1] MR5605: winemac.drv: Fix warning in macdrv_get_pixel_formats.

[Brendan Shanks (＠bshanks)]

Fix a warning introduced with fbf81662ba5b861e52a15c103cfe36a585f718dd:

```
../dlls/winemac.drv/opengl.c:4605:54: warning: incompatible pointer types passing 'struct wgl_pixel_format *' to parameter of type 'PIXELFORMATDESCRIPTOR *' (aka 'struct tagPIXELFORMATDESCRIPTOR *') [-Wincompatible-pointer-types]
            describe_pixel_format(&pixel_formats[i], &formats[i]);
                                                     ^~~~~~~~~~~
../dlls/winemac.drv/opengl.c:4306:82: note: passing argument to parameter 'descr' here
static void describe_pixel_format(const pixel_format *pf, PIXELFORMATDESCRIPTOR *descr)
```