d3d12: Fixes compiling error by include `<unknwn.h>`
In mingw's `<unknwn.h>`, it's defeind __REQUIRED_RPCNDR_H_VERSION__ to 475,
so that gcc/mingw won't raise compiling error that because directx/d3d12.h
define __REQUIRED_RPCNDR_H_VERSION__ to 500, but the maximal supported __REQUIRED_RPCNDR_H_VERSION__ in mingw
are 475.
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16767>
1 file changed
