ASoC: SOF: loader: Print the DSP dump if boot fails

It can be useful to print the DSP dump from the core in case the DSP boot
failed.

Signed-off-by: Peter Ujfalusi <[e-mail]>
Reviewed-by: Ranjani Sridharan <[e-mail]>
Reviewed-by: Pierre-Louis Bossart <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/sof/loader.c

···
 	/* boot the firmware on the DSP */
 	ret = snd_sof_dsp_run(sdev);
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: failed to reset DSP\n");
+		dev_err(sdev->dev, "error: failed to start DSP\n");
+		snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX |
+				     SOF_DBG_DUMP_PCI | SOF_DBG_DUMP_FORCE_ERR_LEVEL);
 		return ret;
 	}