ASoC: SOF: Intel: hda: add dev_dbg() when DMIC number is overridden

It's useful for debug and system integration to show cases where we
ignore the number of microphones reported by NHLT.

Suggested-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210208233336.59449-12-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/intel/hda.c

@@ -614,8 +614,12 @@ static int dmic_topology_fixup(struct snd_sof_dev *sdev,
 	dmic_num = check_nhlt_dmic(sdev);
 
 	/* allow for module parameter override */
-	if (hda_dmic_num != -1)
+	if (hda_dmic_num != -1) {
+		dev_dbg(sdev->dev,
+			"overriding DMICs detected in NHLT tables %d by kernel param %d\n",
+			dmic_num, hda_dmic_num);
 		dmic_num = hda_dmic_num;
+	}
 
 	switch (dmic_num) {
 	case 1: