ASoC: SOF: loader: do not warn about unknown firmware manifest headers

The firmware manifest is designed to be extendable without breaking the
driver-firmware ABI. Driver should not raise a warning in case a new
manifest header type is detected at firmware boot. There are already
checks for IPC ABI compatibility in snd_sof_ipc_valid() and if the
versions are deemed compatible, extra fields in IPC messages should not
trigger warnings.

As runtime pm is enabled on most platforms and
snd_sof_fw_parse_ext_data() is called for every DSP boot, this creates
unnessary kernel dmesg fraffic.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Author: kv2019i

sound/soc/sof/loader.c

@@ -124,8 +124,8 @@ int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 bar, u32 offset)
 			/* They are supported but we don't do anything here */
 			break;
 		default:
-			dev_warn(sdev->dev, "warning: unknown ext header type %d size 0x%x\n",
-				 ext_hdr->type, ext_hdr->hdr.size);
+			dev_dbg(sdev->dev, "unknown ext header type %d size 0x%x\n",
+				ext_hdr->type, ext_hdr->hdr.size);
 			ret = 0;
 			break;
 		}