ASoC: Intel: sof_rt5682: board id cleanup for mtl boards

ASoC: Intel: sof_rt5682: board id cleanup for mtl boards

Since mtl chromebook is using DMI quirk for board config, changing the
SSP port config of mtl_rt5682_def to RVP to simplify mtl board id and
enumeration table.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240509163418.67746-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>