[ALSA] hda-codec - Fix Thinkpad X61/T61 outputs

Enable EAPD bit on Thinkpad X61/T61.  The recent model requires it
explicitly to make any sounds.   In future, it should be toggled
automatically on demand.
Also, added a beep volume/switch.  Some people like it although I
don't understand why :)
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/pci/hda/patch_analog.c

@@ -2982,6 +2982,8 @@ static struct snd_kcontrol_new ad1984_thinkpad_mixers[] = {
 	HDA_CODEC_VOLUME("Mic Boost", 0x14, 0x0, HDA_INPUT),
 	HDA_CODEC_VOLUME("Internal Mic Boost", 0x15, 0x0, HDA_INPUT),
 	HDA_CODEC_VOLUME("Docking Mic Boost", 0x25, 0x0, HDA_OUTPUT),
+	HDA_CODEC_VOLUME("Beep Playback Volume", 0x20, 0x03, HDA_INPUT),
+	HDA_CODEC_MUTE("Beep Playback Switch", 0x20, 0x03, HDA_INPUT),
 	HDA_CODEC_VOLUME("Capture Volume", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_MUTE("Capture Switch", 0x0c, 0x0, HDA_OUTPUT),
 	HDA_CODEC_VOLUME_IDX("Capture Volume", 1, 0x0d, 0x0, HDA_OUTPUT),
@@ -3011,6 +3013,8 @@ static struct hda_verb ad1984_thinkpad_init_verbs[] = {
 	{0x25, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
 	/* Analog mixer - docking mic; mute as default */
 	{0x20, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)},
+	/* enable EAPD bit */
+	{0x12, AC_VERB_SET_EAPD_BTLENABLE, 0x02},
 	{ } /* end */
 };