Quark_LP- change MCU and RGB (#14650)

keyboards/checkerboards/quark_lp/rules.mk

@@ -1,5 +1,5 @@
 # MCU name
-MCU = atmega32u4
+MCU = atmega32u2
 
 # Bootloader selection
 BOOTLOADER = atmel-dfu
@@ -17,5 +17,5 @@ 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
-RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output