Migrate RGB Matrix config to info.json - M (#22908)

keyboards/mt/mt84/info.json

@@ -23,7 +23,43 @@
         "pin": "B0"
     },
     "rgb_matrix": {
-        "driver": "is31fl3737"
+        "animations": {
+            "gradient_up_down": true,
+            "gradient_left_right": true,
+            "breathing": true,
+            "cycle_all": true,
+            "cycle_left_right": true,
+            "cycle_up_down": true,
+            "rainbow_moving_chevron": true,
+            "cycle_out_in": true,
+            "cycle_pinwheel": true,
+            "cycle_spiral": true,
+            "dual_beacon": true,
+            "rainbow_pinwheels": true,
+            "raindrops": true,
+            "jellybean_raindrops": true,
+            "hue_breathing": true,
+            "hue_pendulum": true,
+            "hue_wave": true,
+            "pixel_rain": true,
+            "pixel_flow": true,
+            "pixel_fractal": true,
+            "solid_reactive_simple": true,
+            "solid_reactive": true,
+            "solid_reactive_wide": true,
+            "solid_reactive_multinexus": true,
+            "splash": true,
+            "multisplash": true,
+            "solid_splash": true,
+            "solid_multisplash": true
+        },
+        "default": {
+            "animation": "cycle_all"
+        },
+        "driver": "is31fl3737",
+        "led_flush_limit": 26,
+        "led_process_limit": 20,
+        "max_brightness": 200
     },
     "matrix_pins": {
         "cols": ["B5", "B6", "C6", "C7", "F7", "F6", "F5", "F4", "F1", "F0", "B1", "B2", "B3", "B7", "E6"],