Move RGBLIGHT_LIMIT_VAL to data driven (#20974)

Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/rart/rartpad/config.h

@@ -37,5 +37,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_HUE_STEP 8
 #define RGBLIGHT_SAT_STEP 8
 #define RGBLIGHT_VAL_STEP 8
-#define RGBLIGHT_LIMIT_VAL 240
 #define RGBLIGHT_SLEEP

keyboards/rart/rartpad/info.json

@@ -25,6 +25,9 @@
   "ws2812": {
     "pin": "F7"
   },
+  "rgblight": {
+    "max_brightness": 240
+  },
   "processor": "atmega32u4",
   "bootloader": "caterina",
   "community_layouts": ["ortho_5x4", "numpad_5x4"],