Move RGBLIGHT_HUE/SAT/VAL_STEP to data driven (#21292)

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

keyboards/ein_60/config.h

@@ -29,9 +29,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #    define AUDIO_DAC_SAMPLE_MAX 4095U
 #endif
 
-#    define RGBLIGHT_HUE_STEP  4
-#    define RGBLIGHT_SAT_STEP  8
-#    define RGBLIGHT_VAL_STEP  8
 #    define RGBLIGHT_EFFECT_BREATHING
 #    define RGBLIGHT_EFFECT_RAINBOW_MOOD
 #    define RGBLIGHT_EFFECT_RAINBOW_SWIRL

keyboards/ein_60/info.json

@@ -12,6 +12,9 @@
         "driver": "WS2812"
     },
     "rgblight": {
+        "hue_steps": 4,
+        "saturation_steps": 8,
+        "brightness_steps": 8,
         "led_count": 38,
         "max_brightness": 200,
         "sleep": true