ASoC: pcm512x: Add support for more data formats

ASoC: pcm512x: Add support for more data formats

Currently, pcm512x driver supports only I2S data format.
This commit adds RJ, LJ, DSP_A and DSP_B as well.

I don't expect regression WRT existing sound cards, because:

* default value in corresponding register of pcm512x codec is 0 ==  I2S
* existing in-tree sound cards with pcm512x codec are configured for I2S
* i don't see how existing off-tree sound cards with pcm512x codec could be
  configured differently - it would not work
* tested explicitly, that there is no regression with Raspberry Pi +
  sound card `sound/soc/bcm/hifiberry_dacplus.c`

Signed-off-by: Kirill Marinushkin <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Matthias Reichl <[email protected]>
Cc: Kuninori Morimoto <[email protected]>
Cc: Peter Ujfalusi <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reviewed-by: Peter Ujfalusi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>