add ionoscloud support

systemd/system/oem-cloudinit.service

@@ -4,7 +4,7 @@ Description=Run cloudinit
 [Service]
 EnvironmentFile=/var/run/ignition.env
 Type=oneshot
-ExecCondition=/usr/bin/bash -xc 'OEMS=(aws gcp rackspace-onmetal azure cloudsigma packet vmware digitalocean openstack); echo $${OEMS[*]} | tr " " "\n" | grep -q -x -F "${OEM_ID}"'
+ExecCondition=/usr/bin/bash -xc 'OEMS=(aws gcp rackspace-onmetal azure cloudsigma packet vmware digitalocean openstack ionoscloud); echo $${OEMS[*]} | tr " " "\n" | grep -q -x -F "${OEM_ID}"'
 ExecStart=/usr/bin/bash -xc '/usr/bin/coreos-cloudinit --oem="$(if [ "${OEM_ID}" = aws -o "${OEM_ID}" = openstack ]; then echo ec2-compat; elif [ "${OEM_ID}" = gcp ]; then echo gce; else echo "${OEM_ID}" ; fi)"'
 
 [Install]