wineoss.drv: Add mmdevapi driver.

[Gerald Pfeifer]

I believe

  commit be332326ba8fc3def406c5f29adf04fbe9a83976
  Author: Andrew Eikum <aeikum at codeweavers.com>
  Date:   Wed Apr 27 09:12:36 2011 -0500

is causing the following build failures on my nightly FreeBSD testers:

  mmdevdrv.c:463:20: error: 'AFMT_S24_PACKED' undeclared (first use in this function)
  mmdevdrv.c:476:16: error: 'AFMT_FLOAT' undeclared (first use in this function)
  mmdevdrv.c:854:24: error: 'AFMT_FLOAT' undeclared (first use in this function)
  mmdevdrv.c:863:24: error: 'AFMT_S24_PACKED' undeclared (first use in this function)
  mmdevdrv.c:1084:24: error: 'SNDCTL_DSP_HALT' undeclared (first use in this function)

Looks like some autoconfigury is not working or incomplete?

Gerald