ASoC: da7213: add .auto_selectable_formats support

Merge series from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

da7213 is still using M/S instead of P/C for SND_SOC_DAIFMT_CBx_CFx.
[PATCH 1/2] will update it.
[PATCH 2/2] will enable DAI format automatic select.