BugLink: https://launchpad.net/bugs/573284

The OR verified that using the olpc-xo-1_5 model quirk allows the
headphones to be audible when inserted into the jack. Capture was
also verified to work correctly.
Reported-by: NAndy Couldrake <acouldrake@googlemail.com>
Tested-by: NAndy Couldrake <acouldrake@googlemail.com>
Cc: <stable@kernel.org>
Signed-off-by: NDaniel T Chen <crimsun@ubuntu.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>