Update xyzprinting_da_vinci_pro_evo.def.json

update machine_start_gcode

resources/definitions/xyzprinting_da_vinci_pro_evo.def.json

@@ -75,7 +75,7 @@
 		"skirt_line_count": { "default_value" : 5 },
         "machine_gcode_flavor": { "default_value": "RepRap (Marlin/Sprinter)" },
         "machine_start_gcode": {
-            "default_value": "G28 ; home all axes\nG1 Z15 F5000 ; lift nozzle\nG92 E0\nG1 F200 E3\n"
+            "default_value": "M191\nG28 ; home all axes\nG1 Z15 F5000 ; lift nozzle\nG92 E0\nG1 F200 E3\n"
          },
         "machine_end_gcode": {
             "default_value": "M106 P1 S255 ; turn on fan\nG92 E0\nG28; home X,Y,Z axis\nM84     ; disable motors\n"