ASoC: fsl_xcvr: Add constraints of period size while using eDMA

eDMA on i.MX93 platform requires the period size to be multiple of
maxburst.

Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20230104023953.2973362-4-chancel.liu@nxp.com


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