syncSLErepos: use nofail fstab option
syncSLErepos: use nofail fstab option

to not make systemd boot fail into emergency mode
because the temporary iso is usually missing

SUSE-Cloud/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation,gosipyan/automation,SUSE-Cloud/automation,gosipyan/automation,SUSE-Cloud/automation