ASoC: Intel: Boards: cml_da7219_max98390: add capture stream for echo reference

enable speaker capture dai link for feedback path

Signed-off-by: Mac Chiang <mac.chiang@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/1617285613-29457-1-git-send-email-mac.chiang@intel.com


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