ALSA: hda - consolidate chip rename functions

A few multiple codec drivers do renaming the chip_name string but all
these are open-coded and some of them have even no error check.  Let's
make common helpers to do it properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 16b8dcb..e1ffb02 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -822,17 +822,7 @@
 };
 
 
-/* replace the codec chip_name with the given string */
-static int alc_codec_rename(struct hda_codec *codec, const char *name)
-{
-	kfree(codec->core.chip_name);
-	codec->core.chip_name = kstrdup(name, GFP_KERNEL);
-	if (!codec->core.chip_name) {
-		alc_free(codec);
-		return -ENOMEM;
-	}
-	return 0;
-}
+#define alc_codec_rename(codec, name) snd_hda_codec_set_name(codec, name)
 
 /*
  * Rename codecs appropriately from COEF value or subvendor id