starting the tunnel will make it keep trying until it connects

Changed 'auto=add' to 'auto=start' to make sure the tunnel starts.
When both sides are there they will connect. This resolves the
issue that there is only a small time frame in which the VPN
would connect.

(cherry picked from commit b95addd3ef)

systemvm/patches/debian/config/opt/cloud/bin/ipsectunnel.sh

@@ -151,7 +151,7 @@ ipsec_tunnel_add() {
     sudo echo "  salifetime=${esplifetime}s" >> $vpnconffile &&
     sudo echo "  pfs=$pfs" >> $vpnconffile &&
     sudo echo "  keyingtries=2" >> $vpnconffile &&
-    sudo echo "  auto=add" >> $vpnconffile &&
+    sudo echo "  auto=start" >> $vpnconffile &&
     sudo echo "$leftpeer $rightpeer: PSK \"$secret\"" > $vpnsecretsfile &&
     sudo chmod 0400 $vpnsecretsfile