ASoC: Intel: add multi-function SDW mockup codec match

SoundWire multi function codecs are common used in recent platforms.
Add a multi function mockup codec to test without real codec.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20250305135443.201884-6-yung-chuan.liao@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>