🐛 Fix some BTT SKR2 pins (#22558)

Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h

@@ -153,13 +153,6 @@
   #define POWER_LOSS_PIN                    PC15  // PWRDET
 #endif
 
-//
-// NeoPixel LED
-//
-#ifndef NEOPIXEL_PIN
-  #define NEOPIXEL_PIN                      PE6
-#endif
-
 //
 // Control pin of driver/heater/fan power supply
 //
@@ -511,6 +504,13 @@
   #endif
 #endif
 
+//
+// NeoPixel LED
+//
+#ifndef NEOPIXEL_PIN
+  #define NEOPIXEL_PIN                      PE6
+#endif
+
 //
 // WIFI
 //