MINIMUM_STEPPER_DIR_DELAY in LA (#15154)

Add missed MINIMUM_STEPPER_DIR_DELAY after dir change in LinearAdvance interrupt.

Marlin/src/module/stepper.cpp

@@ -1893,6 +1893,11 @@ uint32_t Stepper::stepper_block_phase_isr() {
         REV_E_DIR(stepper_extruder);
     #endif
 
+    // A small delay may be needed after changing direction
+    #if MINIMUM_STEPPER_DIR_DELAY > 0
+      DELAY_NS(MINIMUM_STEPPER_DIR_DELAY);
+    #endif
+
     // Get the timer count and estimate the end of the pulse
     hal_timer_t pulse_end = HAL_timer_get_count(PULSE_TIMER_NUM) + hal_timer_t(MIN_PULSE_TICKS);