[ALSA] hda: Correct SPDIF out default config

Several laptops have have the SPDIF out defined as 'Digital other out'
when it should be 'SPDIF out' in the default config.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>