Update Servo.h

Changed AUTO_BED_LEVELING to AUTO_BED_COMPENSATION

Marlin/Servo.h

@@ -123,7 +123,7 @@ public:
   int read();                        // returns current pulse width as an angle between 0 and 180 degrees
   int readMicroseconds();            // returns current pulse width in microseconds for this servo (was read_us() in first release)
   bool attached();                   // return true if this servo is attached, otherwise false
-#if defined (ENABLE_AUTO_BED_LEVELING) && (PROBE_SERVO_DEACTIVATION_DELAY > 0)
+#if defined (ENABLE_AUTO_BED_COMPENSATION) && (PROBE_SERVO_DEACTIVATION_DELAY > 0)
   int pin;                           // store the hardware pin of the servo
 #endif
 private: