Fix G10-G11 by adding a synchronize

Based on #7792 by @tcm0116

Marlin/Marlin_main.cpp

@@ -3193,6 +3193,8 @@ static void homeaxis(const AxisEnum axis) {
     // The current position will be the destination for E and Z moves
     set_destination_to_current();
 
+    stepper.synchronize(); // Wait for all moves to finish
+
     if (retracting) {
       // Remember the Z height since G-code may include its own Z-hop
       // For best results turn off Z hop if G-code already includes it