ASoC: fsl_asrc: Set ASR76K and ASR56K based on processing clock

The processing clock is different for platforms, so it is better
to set ASR76K and ASR56K based on processing clock, rather than
hard coding the value for them.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mihai Serban <mihai.serban@nxp.com>
Link: https://lore.kernel.org/r/1589278979-31008-1-git-send-email-shengjiu.wang@nxp.com


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