audio: make create_pdos() private

Clean up.

Reviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

audio/audio.c

@@ -1990,7 +1990,7 @@ void AUD_set_volume_in(SWVoiceIn *sw, Volume *vol)
     }
 }
 
-void audio_create_pdos(Audiodev *dev)
+static void audio_create_pdos(Audiodev *dev)
 {
     switch (dev->driver) {
 #define CASE(DRIVER, driver, pdo_name)                              \

audio/audio_int.h

@@ -306,7 +306,6 @@ static inline size_t audio_ring_posb(size_t pos, size_t dist, size_t len)
 #define ldebug(fmt, ...) (void)0
 #endif
 
-void audio_create_pdos(Audiodev *dev);
 AudiodevPerDirectionOptions *audio_get_pdo_in(Audiodev *dev);
 AudiodevPerDirectionOptions *audio_get_pdo_out(Audiodev *dev);