ALSA: HDA: Apply SKU override for Acer aspire 7736z

BugLink: http://launchpad.net/bugs/617647



The current SKU value disables playback, so ignore the SKU value.

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