ASoC: Intel: sof_nau8825: mach cleanup for rpl boards

ASoC: Intel: sof_nau8825: mach cleanup for rpl boards

Add a common entry in enumeration table for all nau8825 boards
with/without speaker amplifier. All other rpl_nau8825_def entries
become redundant so get removed.

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://msgid.link/r/20240327162408.63953-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>