📝 Update NEOPIXEL_TYPE comment (#24110)

Marlin/Configuration.h

 // Support for Adafruit NeoPixel LED driver
 //#define NEOPIXEL_LED
 #if ENABLED(NEOPIXEL_LED)
-  #define NEOPIXEL_TYPE          NEO_GRBW // NEO_GRBW / NEO_GRB - four/three channel driver type (defined in Adafruit_NeoPixel.h)
+  #define NEOPIXEL_TYPE          NEO_GRBW // NEO_GRBW, NEO_RGBW, NEO_GRB, NEO_RBG, etc.
+                                          // See https://github.com/adafruit/Adafruit_NeoPixel/blob/master/Adafruit_NeoPixel.h
   //#define NEOPIXEL_PIN                4 // LED driving pin
   //#define NEOPIXEL2_TYPE  NEOPIXEL_TYPE
   //#define NEOPIXEL2_PIN               5