When calling 'snd_pcm_format_physical_width', SNDRV_PCM_FORMAT_LAST is a
valid value, so don't skip it.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>