ASoC: soc-dai.h: drop a duplicated word

Drop the repeated word "be" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20200719003307.21403-1-rdunlap@infradead.org


Signed-off-by: Mark Brown <broonie@kernel.org>