BugLink: https://bugs.launchpad.net/bugs/463178

Set Macbook 5,2 (106b:4a00) hardware to use ALC885_MB5

Cc: <stable@kernel.org>
Signed-off-by: Luke Yelavich <luke.yelavich@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>