ASoC: soc-core: merge snd_soc_bind_card() and snd_soc_instantiate_card()

having both soc_bind_card() and snd_soc_instantiate_card() is
very confusable. Let's merge these.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87mud9hkwj.wl-kuninori.morimoto.gx@renesas.com


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