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

sound/soc/intel/boards/bxt_da7219_max98357a.c

@@ -813,6 +813,7 @@ static int broxton_audio_probe(struct platform_device *pdev)
 				if (ctx->spkamp == SPKAMP_MAX98390) {
 					broxton_dais[i].codecs = max98390_codec;
 					broxton_dais[i].num_codecs = ARRAY_SIZE(max98390_codec);
+					broxton_dais[i].dpcm_capture = 1;
 				}
 			}
 			/* DIALOG_CODEC is connected to SSP0 */