ASoC: SOF: ipc4-topology: Remove the ref_audio_fmt field

ASoC: SOF: ipc4-topology: Remove the ref_audio_fmt field

Remove the field in struct sof_ipc4_available_audio_format and pass the
format list to be searched as an argument to sof_ipc4_init_audio_fmt()
directly.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230313124856.8140-10-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>