ASoC: soc-core: remove legacy style of aux_dev

Now all drivers are using snd_soc_dai_link_component for aux_dev.
Let's remove legacy style

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87h86s6w8x.wl-kuninori.morimoto.gx@renesas.com


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