ASoC: Intel: sof_sdw: add codec_info pointer

codec_info_list[codec_index] is used multiple times in the
create_sdw_dailink() function. Adding a codec_info pointer to shorten
the code. This is a preparation for the following up patches.
No function changed.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230602202225.249209-5-pierre-louis.bossart@linux.intel.com


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