ASoC: twl4030: Drop legacy, non DT boot support

Legacy or non DT boot is no longer possible on systems where the
tw4030/5030 is used.

Drop the support for handling legacy pdata and replace it with a local
board_params struct to allow further cleanups on the mfd side.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20220616153521.29701-1-peter.ujfalusi@gmail.com


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