ASoC: jz4740-i2s: Support S20_LE and S24_LE sample formats

ASoC: jz4740-i2s: Support S20_LE and S24_LE sample formats

The audio controller on JZ47xx SoCs can transfer 20- and 24-bit
samples in the FIFO, so allow those formats to be used with the
I2S driver. Although the FIFO doesn't care about the in-memory
sample format, we only support 4-byte format variants because the
DMA controller on these SoCs cannot transfer in 3-byte multiples.

Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20221023143328.160866-7-aidanmacdonald.0x0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>