[PATCH v2 0/4] MR3052: sapi: Finish implementing basic functionality for SpMMAudioOut.

[Shaun Ren (＠shaunren)]

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  v2: sapi: Implement ISpMMSysAudio::EventHandle.
      sapi: Implement ISpMMSysAudio::Write.
      sapi: Free completed buffers asynchronously in SpMMAudio.

https://gitlab.winehq.org/wine/wine/-/merge_requests/3052