Fix TMC EEPROM regression (#14008)

Partially undo 15357af to ensure TMC code is initialized in the proper order.

Marlin/src/Marlin.cpp

     fanmux_init();
   #endif
 
+  #if HAS_TRINAMIC && HAS_LCD_MENU
+    init_tmc_section();
+  #endif
+
   #if ENABLED(MIXING_EXTRUDER)
     mixer.init();
   #endif

Marlin/src/lcd/ultralcd.cpp

   #if HAS_ENCODER_ACTION
     encoderDiff = 0;
   #endif
-
-  #if HAS_TRINAMIC && HAS_LCD_MENU
-    init_tmc_section();
-  #endif
 }
 
 bool MarlinUI::get_blink() {