unbound: fix starting of unbound via Status: Services

unbound could not be started via Status: Services.

(cherry picked from commit 38efc0c4)

src/www/status_services.php

@@ -94,6 +94,9 @@ function service_control_start($name, $extras) {
 		case 'dnsmasq':
 			services_dnsmasq_configure();
 			break;
+		case 'unbound':
+			services_unbound_configure();
+			break;
 		case 'dhcpd':
 			services_dhcpd_configure();
 			break;