[ALSA] hda-codec - Fix breakage of resume in auto-config of realtek codecs

The last patch for fixing the auto-config pin setting breaks the resume
due to a wrong use of snd_hda_codec_amp_stereo().  The code in the init
hook shouldn't touch the amp cache.

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 6c60581..355d88d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3489,7 +3489,8 @@
 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL,
 			    pin_type);
 	/* unmute pin */
-	snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0, 0xff, 0x00);
+	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
+			    AMP_OUT_UNMUTE);
 }
 
 static void alc880_auto_set_output_and_unmute(struct hda_codec *codec,