Move RGBLight code into its own folder (#13312)

keyboards/mxss/rules.mk

@@ -2,39 +2,31 @@
 MCU = atmega32u4
 
 # Bootloader selection
-#   Teensy       halfkay
-#   Pro Micro    caterina
-#   Atmel DFU    atmel-dfu
-#   LUFA DFU     lufa-dfu
-#   QMK DFU      qmk-dfu
-#   ATmega32A    bootloadHID
-#   ATmega328P   USBasp
 BOOTLOADER = atmel-dfu
 
 # Build Options
 #   change yes to no to disable
 #
-BOOTMAGIC_ENABLE = lite      # Virtual DIP switch configuration
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
 MOUSEKEY_ENABLE = yes       # Mouse keys
 EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = no        # Console for debug
+CONSOLE_ENABLE = no         # Console for debug
 COMMAND_ENABLE = yes        # Commands for debug and configuration
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 # if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 NKRO_ENABLE = no            # USB Nkey Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
-MIDI_ENABLE = no            # MIDI support
-UNICODE_ENABLE = no         # Unicode
-BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
-AUDIO_ENABLE = no           # Audio output on port C6
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
 
 SRC += mxss_frontled.c
 
 # Remove the common RGB light code and use my iteration instead
+COMMON_VPATH += $(QUANTUM_DIR)/rgblight
 OPT_DEFS += -DRGBLIGHT_ENABLE
-SRC += $(QUANTUM_DIR)/process_keycode/process_rgb.c
 SRC += rgblight.c
-SRC += color.c
-SRC += ws2812.c
+SRC += $(QUANTUM_DIR)/color.c
+WS2812_DRIVER_REQUIRED = yes
 CIE1931_CURVE = yes
+RGB_KEYCODES_ENABLE = yes