Fix for ugly code compilation errors in SERVO_ENDSTOP checks

Marlin/Marlin_main.cpp

@@ -687,8 +687,10 @@ static void homeaxis(int axis) {
       0) {
 
     // Engage Servo endstop if enabled
-    #ifdef SERVO_ENDSTOPS[axis] > -1
+    #ifdef SERVO_ENDSTOPS
+      if (SERVO_ENDSTOPS[axis] > -1) {
         servos[servo_endstops[axis]].write(servo_endstop_angles[axis * 2]);
+      }
     #endif
       
     current_position[axis] = 0;
@@ -715,8 +717,10 @@ static void homeaxis(int axis) {
     endstops_hit_on_purpose();
 
     // Retract Servo endstop if enabled
-    #ifdef SERVO_ENDSTOPS[axis] > -1
+    #ifdef SERVO_ENDSTOPS
+      if (SERVO_ENDSTOPS[axis] > -1) {
         servos[servo_endstops[axis]].write(servo_endstop_angles[axis * 2 + 1]);
+      }
     #endif
   }
 }