Fix system hang when shutown
Existing systemd shtudown script would cause system hang by waiting for DNS response but system-resolved service may be down.
[Unit]
Description=Google Compute Engine Shutdown Scripts
-After=local-fs.target network-online.target network.target rsyslog.service
+After=local-fs.target network-online.target network.target rsyslog.service systemd-resolved.service
After=google-instance-setup.service google-network-setup.service
Wants=local-fs.target network-online.target network.target
