Patch for M503 output

Marlin/configuration_store.cpp

     #endif
     SERIAL_EOL;
     #if ENABLED(DISTINCT_E_FACTORS)
-      SERIAL_ECHO_START;
+      CONFIG_ECHO_START;
       for (uint8_t i = 0; i < E_STEPPERS; i++) {
         SERIAL_ECHOPAIR("  M201 T", (int)i);
         SERIAL_ECHOLNPAIR(" E", VOLUMETRIC_UNIT(planner.max_acceleration_mm_per_s2[E_AXIS + i]));