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commit 3542aed7 upstream.

Lenovo Ideapad Z560 has a mute LED that is controlled via EAPD pin
0x1b on CX20585 codec.  (EAPD bit on corresponds to mute LED on.)
The machine doesn't need other EAPD, so the fixup concentrates on
controlling EAPD 0x1b following the vmaster state (but inversely).

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=665315

Reported-by: Szymon Kowalczyk <fazerxlo@o2.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>