ASoC: jz4740-i2s: Use FIELD_PREP() macros in hw_params callback

Get rid of a couple of macros and improve readability by using
FIELD_PREP() and GENMASK() for the sample size setting.

Acked-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20221023143328.160866-5-aidanmacdonald.0x0@gmail.com


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