ASoC: fsl-asoc-card: Remove BCLK default value for tlv320aic31xx card

Now that fsl-asoc-card support setting mclk-id through the device-tree
mclk-id property, let's remove the default BCLK configuration for this
card.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Link: https://lore.kernel.org/r/20220117132109.283365-6-ariel.dalessandro@collabora.com


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