The previous commit caused a regression on HP laptops with 92HD83x/88x
codecs.  The default polarity of mute-LED GPIO is inverted on these
devices.

Reference: Novell bnc#578190
	https://bugzilla.novell.com/show_bug.cgi?id=578190Signed-off-by: NTakashi Iwai <tiwai@suse.de>