ALSA: hda - Fix mic regression by ASRock mobo fixup

The commit [1a3f0991: ALSA: hda - Fix surround output pins for
ASRock B150M mobo] introduced a fixup of pin configs for ASRock
mobos to fix the surround outputs.  However, this overrides the pin
configs of the mic pins as if they are outputs-only, effectively
disabling the mic inputs.  Of course, it's a regression wrt mic
functionality.

Actually the pins 0x18 and 0x1a don't need to be changed; we just need
to disable the bogus pins 0x14 and 0x15.  Then the auto-parser will
pick up mic pins as switchable and assign the surround outputs there.

This patch removes the incorrect pin overrides of NID 0x18 and 0x1a
from the ASRock fixup.

Fixes: 1a3f0991 ('ALSA: hda - Fix surround output pins for ASRock...')
Reported-and-tested-by: NVitor Antunes <vitor.hda@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=187431
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -6907,8 +6907,6 @@ static const struct hda_fixup alc662_fixups[] = {
 		.v.pins = (const struct hda_pintbl[]) {
 			{ 0x15, 0x40f000f0 }, /* disabled */
 			{ 0x16, 0x40f000f0 }, /* disabled */
-			{ 0x18, 0x01014011 }, /* LO */
-			{ 0x1a, 0x01014012 }, /* LO */
 			{ }
 		}
 	},