direct3d11: make sure we request a device that can do D3D11 11.1
direct3d11: make sure we request a device that can do D3D11 11.1

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc