ASoC: SOF: ipc and dsp dump: Add markers for better visibility

Add markers to identify the start and end of the IPC and DSP dumps in the
kernel log.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20211006110645.26679-4-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ops.h

@@ -243,14 +243,20 @@ snd_sof_dsp_set_power_state(struct snd_sof_dev *sdev,
 /* debug */
 static inline void snd_sof_dsp_dbg_dump(struct snd_sof_dev *sdev, u32 flags)
 {
-	if (sof_ops(sdev)->dbg_dump)
+	if (sof_ops(sdev)->dbg_dump) {
+		dev_err(sdev->dev, "------------[ DSP dump start ]------------\n");
 		sof_ops(sdev)->dbg_dump(sdev, flags);
+		dev_err(sdev->dev, "------------[ DSP dump end ]------------\n");
+	}
 }
 
 static inline void snd_sof_ipc_dump(struct snd_sof_dev *sdev)
 {
-	if (sof_ops(sdev)->ipc_dump)
+	if (sof_ops(sdev)->ipc_dump) {
+		dev_err(sdev->dev, "------------[ IPC dump start ]------------\n");
 		sof_ops(sdev)->ipc_dump(sdev);
+		dev_err(sdev->dev, "------------[ IPC dump end ]------------\n");
+	}
 }
 
 static inline int snd_sof_debugfs_add_region_item(struct snd_sof_dev *sdev,