ASoC: codecs: rtq9128: Add TDM input source select

Merge series from cy_huang@richtek.com:

This patch series create a TDM source select property and use it to
decide which TDM data source is connected.

Following by the below patch disccuion
https://lore.kernel.org/lkml/1695780376-32301-1-git-send-email-cy_huang@richtek.com/#t
It may not be a good choice to add the user controlable mixer control
item. Since it follows the board design, make it as a device property.