asus-nb-wmi: Add another wapf=4 quirk

Wifi on this laptop does not work unless asus-nb-wmi.wapf=4 is specified on
the kerne commandline, add a quirk for this.

Cc: stable@vger.kernel.org
BugLink: https://bugs.launchpad.net/bugs/1173681


Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>