configs: lahaina: add support for native dsd

Add new mixport in policy configuration to support
native dsd playback. Add routes from dsd mix port to
headphone/headset devices.
Add mixer control path for headphones-dsd device.
Add RX_CDC_DMA_RX_5 as backend interface for headphones dsd.

Change-Id: I77a94a57eb27aacd8e08db9191e54b692aa1cc36