ALSA: HDA: Fixup Realtek headphone pin initialization

This typo caused headphone pins not to be initialized correctly.

BugLink: https://bugs.launchpad.net/bugs/871582


Reported-by: Effenberg
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>