Fix servo delay in Folgertech config

Marlin/example_configurations/Folger Tech/i3-2020/Configuration.h

@@ -1616,7 +1616,7 @@
 // Delay (in milliseconds) before the next move will start, to give the servo time to reach its target angle.
 // 300ms is a good value but you can try less delay.
 // If the servo can't reach the requested position, increase it.
-#define SERVO_DELAY 500
+#define SERVO_DELAY { 500, 500 }
 
 // Servo deactivation
 //