xserver-xf86-config: Add a netbook xorg.conf with an extra option
The X server on some netbooks don't interact well with HAL with their
keyboard or mouse and consequently one or both is unusable. This
patch adds AutoAddDevices = False to a new netbook-specific
xorg.conf. If this breaks any systems which currently work, we'll
have to figure out what's really going on with hotplug and the X
server.
