🐛 Prevent BABYSTEP freeze

See #22830, #13300

Marlin/src/module/stepper.cpp

@@ -3072,7 +3072,12 @@ void Stepper::report_positions() {
   #else
     #define CYCLES_EATEN_BABYSTEP 0
   #endif
-  #define EXTRA_CYCLES_BABYSTEP (STEP_PULSE_CYCLES - (CYCLES_EATEN_BABYSTEP))
+
+  #if CYCLES_EATEN_BABYSTEP < STEP_PULSE_CYCLES
+    #define EXTRA_CYCLES_BABYSTEP (STEP_PULSE_CYCLES - (CYCLES_EATEN_BABYSTEP))
+  #else
+    #define EXTRA_CYCLES_BABYSTEP 0
+  #endif
 
   #if EXTRA_CYCLES_BABYSTEP > 20
     #define _SAVE_START() const hal_timer_t pulse_start = HAL_timer_get_count(MF_TIMER_PULSE)