Add REPORT_TRAMMING_MM option (#19682)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/gcode/bedlevel/G35.cpp

@@ -160,6 +160,7 @@ void GcodeSuite::G35() {
              " ", (screw_thread & 1) == (adjust > 0) ? "CCW" : "CW",
              " by ", abs(full_turns), " turns");
       if (minutes) SERIAL_ECHOPAIR(" and ", abs(minutes), " minutes");
+      if (ENABLED(REPORT_TRAMMING_MM)) SERIAL_ECHOPAIR(" (", -diff, "mm)");
       SERIAL_EOL();
     }
   }