0w: Set default to multi-user.

The RaspberryPi Zero W is a single core device with 512MB of ram, as
such, running a desktop on it by default can be quite slow.  Set the
default graphical target to be 'multi-user' so that it boots to console
instead of loading xfce.

raspberry-pi-zero-w.sh

@@ -44,6 +44,9 @@ install -m755 /bsp/scripts/copy-user-wpasupplicant.sh /usr/bin/
 status_stage3 'Enable copying of user wpa_supplicant.conf file'
 systemctl enable copy-user-wpasupplicant
 
+status_stage3 'Set default to cli since the system is slow and has low memory'
+systemctl set-default multi-user
+
 status_stage3 'Enabling ssh by putting ssh or ssh.txt file in /boot'
 systemctl enable enable-ssh