ASoC: Intel: Boards: tgl_max98373: add dpcm_capture flag for speaker_smart_amp

Smart_amp_speaker device has the playback stream and capture stream
associated to it. Hence add the dpcm_capture = 1 flag while dailink
creation.
This patches fixes:
ERR kernel [timestamp] SSP1-Codec: ASoC: no backend capture stream

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20201109210958.84198-1-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/sof_rt5682.c

@@ -734,6 +734,8 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
 			links[id].num_codecs = ARRAY_SIZE(max_98373_components);
 			links[id].init = max98373_spk_codec_init;
 			links[id].ops = &max_98373_ops;
+			/* feedback stream */
+			links[id].dpcm_capture = 1;
 		} else if (sof_rt5682_quirk &
 				SOF_MAX98360A_SPEAKER_AMP_PRESENT) {
 			links[id].codecs = max98360a_component;