ALSA: hda - Add pin configs for ASUS mobo with IDT 92HD73XX codec

commit 6426460e5d87810e042962281fe3c1e8fc256162 upstream.

BIOS doesn't seem to set up pins for 5.1 and the SPDIF out, so we need
to give explicitly here.

Reported-and-tested-by: Misan Thropos <misanthropos@gmx.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>