refactor(network-legacy): use more precise global variables

Author: aafeijoo-suse

modules.d/35network-legacy/module-setup.sh

@@ -24,7 +24,7 @@ install() {
 
     #Adding default link
     if dracut_module_included "systemd"; then
-        inst_multiple -o "${systemdutildir}/network/99-default.link"
+        inst_multiple -o "${systemdnetwork}/99-default.link"
         [[ $hostonly ]] && inst_multiple -H -o "${systemdnetworkconfdir}/*.link"
     fi