For symmetry with the mixer interface, rename oss_t to oss_audio_t and OSSType to OSSAudioType.
For symmetry with the mixer interface, rename oss_t to oss_audio_t and
OSSType to OSSAudioType.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator