ASoC: ti: davinci-i2s: Add S24_LE to supported formats

S24_LE is supported by McBSP but not by the driver.

Add S24_LE to driver's supported formats. Using it enables the sign
extension in DRR (Data Receive Register). The other formats are kept
with the zero extension in DRR.

Remove data_type table as it is no longer used.

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://msgid.link/r/20240402071213.11671-12-bastien.curutchet@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>