ASoC: SOF: ipc4: Add support for formats per pins

Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:

The modules in IPC4 can have multiple 'pins' on their input and output
and these pins can receive or output audio in different formats.
Currently we assume that all pins are using the same format which is a
limitation that needs to be lifted in order to support more complex
components.

This series will extend and rework the format handling to allow
different formats on pins.