ASoC: SOF: loader: Re-phrase the missing firmware error to avoid duplication

In case the firmware is missing we will have the following in the kernel
log:

1 | Direct firmware load for intel/sof/sof-tgl-h.ri failed with error -2
2 | error: request firmware intel/sof/sof-tgl-h.ri failed err: -2
3 | you may need to download the firmware from https://github.com/thesofproject/sof-bin/
4 | error: failed to load DSP firmware -2
5 | error: sof_probe_work failed err: -2

The first line is the standard, request_firmware() warning.
The second and third line is printed in snd_sof_load_firmware_raw()
Note that the first and second line is mostly identical.

With this patch the log will be changed to:
1 | Direct firmware load for intel/sof/sof-tgl-h.ri failed with error -2
2 | error: sof firmware file is missing, you might need to
3 |        download it from https://github.com/thesofproject/sof-bin/
4 | error: failed to load DSP firmware -2
5 | error: sof_probe_work failed err: -2
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/20210916085342.29993-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/loader.c

@@ -729,10 +729,10 @@ int snd_sof_load_firmware_raw(struct snd_sof_dev *sdev)
 	ret = request_firmware(&plat_data->fw, fw_filename, sdev->dev);
 
 	if (ret < 0) {
-		dev_err(sdev->dev, "error: request firmware %s failed err: %d\n",
-			fw_filename, ret);
 		dev_err(sdev->dev,
-			"you may need to download the firmware from https://github.com/thesofproject/sof-bin/\n");
+			"error: sof firmware file is missing, you might need to\n");
+		dev_err(sdev->dev,
+			"       download it from https://github.com/thesofproject/sof-bin/\n");
 		goto err;
 	} else {
 		dev_dbg(sdev->dev, "request_firmware %s successful\n",