Rename _sndrv_pcm_format to _snd_pcm_format
Rename _sndrv_pcm_format to _snd_pcm_format

Rename _sndrv_pcm_format to _snd_pcm_format for compatible with alsa-lib.

Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

tiwai/salsa-lib,tiwai/salsa-lib