[Bug 33225] Metacell demo can't play music in mp3 format

https://bugs.winehq.org/show_bug.cgi?id=33225

--- Comment #9 from Sagawa  ---
Created attachment 55066
  --> https://bugs.winehq.org/attachment.cgi?id=55066
Use dB unit

I can confirm the issue, even the game complains about video playback.
Could you try this patch?

I realized that this issue was caused by scaling model mismatching in mciqtz32.
The audio volume value should be converted to dB unit before passing to
IBasicAudio_put_Volume.