ASoC: Intel: avs: Use devm_kstrdup_const

FW name is constant and we just duplicate it, use const variant of
devm_kstrdup to possibly save a bit of memory.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://msgid.link/r/20240403093145.3375857-3-amadeuszx.slawinski@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/avs/avs.h

@@ -107,7 +107,7 @@ struct avs_spec {
 };
 
 struct avs_fw_entry {
-	char *name;
+	const char *name;
 	const struct firmware *fw;
 
 	struct list_head node;

sound/soc/intel/avs/utils.c

@@ -250,7 +250,7 @@ int avs_request_firmware(struct avs_dev *adev, const struct firmware **fw_p, con
 	if (!entry)
 		return -ENOMEM;
 
-	entry->name = kstrdup(name, GFP_KERNEL);
+	entry->name = kstrdup_const(name, GFP_KERNEL);
 	if (!entry->name) {
 		kfree(entry);
 		return -ENOMEM;
@@ -258,7 +258,7 @@ int avs_request_firmware(struct avs_dev *adev, const struct firmware **fw_p, con
 
 	ret = request_firmware(&entry->fw, name, adev->dev);
 	if (ret < 0) {
-		kfree(entry->name);
+		kfree_const(entry->name);
 		kfree(entry);
 		return ret;
 	}
@@ -282,7 +282,7 @@ void avs_release_last_firmware(struct avs_dev *adev)
 
 	list_del(&entry->node);
 	release_firmware(entry->fw);
-	kfree(entry->name);
+	kfree_const(entry->name);
 	kfree(entry);
 }
 
@@ -296,7 +296,7 @@ void avs_release_firmwares(struct avs_dev *adev)
 	list_for_each_entry_safe(entry, tmp, &adev->fw_list, node) {
 		list_del(&entry->node);
 		release_firmware(entry->fw);
-		kfree(entry->name);
+		kfree_const(entry->name);
 		kfree(entry);
 	}
 }