Follow-up to !600.
--
v2: wineoss: Switch to mmdevapi's unixlib.h.
wineoss: Adapt "get_position_params" struct to mmdevapi's.
wineoss: Adapt "get_frequency_params" struct to mmdevapi's.
wineoss: Adapt "create_stream_params" struct to mmdevapi's.
wineoss: Adapt "test_connect_params" struct to mmdevapi's.
wineoss: Drop "oss_" prefix in unixlib enum, apply it to the functions instead.
mmdevapi: Integrate wineoss's additions in unixlib.h.
https://gitlab.winehq.org/wine/wine/-/merge_requests/799