fix restart on platforms without a setup_switch()

SVN-Revision: 10846

package/base-files/files/etc/init.d/network

@@ -20,6 +20,8 @@ start() {
 }
 
 restart() {
+	setup_switch() { return 0; }
+	
 	include /lib/network
 	setup_switch
 	ifup -a