QtMultiMedia tries to load wmfengine.dll instead of dsengine.dll on windows xp

Hi.

I compiled qt 5.5.0 on Windows XP(Both: VirtualBox and real hardware):

And set this environment variable to point to `DirectXSDK` directory:
`SET DXSDK_DIR=C:\DXSDK\`

And this is how i called configure:
```
configure -debug-and-release -opensource -confirm-license -opengl dynamic -no-warnings-are-errors -nomake examples -nomake tests -skip qtwebengine -skip qtandroidextras -skip qtmacextras -skip qtx11extras -target xp -prefix E:\myqt\build\single\5.5.0
```

Qt compiled successfully and also i tried to compile this sample:
https://doc.qt.io/qt-5/qtmultimedia-multimediawidgets-videowidget-example.html

It compiled also! But when i wanted to run it, i couldn't watch the video. This is the the ouput of DependencyWalker Profiler:
https://gist.github.com/LinArcX/9d1d4a0de156cabf9967d0c698657938

Seems it tries to load `wmfengine.dll` instead of `dsengine.dll` and it failed. But Why `wmfengine`???!!! It's Xp and it should load `dsengine.dll`. Isn't it? Or i missed something?