Split intel generic SoundWire machine driver private data into two
structures. One structure is generic one which can be used by other
platform machine driver and the other one is intel specific one.
Move generic machine driver private data to soc_sdw_utils.h.
Define a void pointer in generic machine driver private data structure
and assign the vendor specific structure in mc_probe() call.

Link: https://github.com/thesofproject/linux/pull/5068Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://patch.msgid.link/20240801091446.10457-15-Vijendar.Mukunda@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>