Migrate rgblight.pin and RGB_DI_PIN to ws2812.pin (#20303)

keyboards/westfoxtrot/cypher/rev1/keymaps/kwer/config.h

@@ -16,7 +16,7 @@
 
 #pragma once
 
-#define RGB_DI_PIN F7
+#define WS2812_DI_PIN F7
   #define RGBLED_NUM 15
   #define RGBLIGHT_HUE_STEP 8
   #define RGBLIGHT_SAT_STEP 8

keyboards/westfoxtrot/cypher/rev1/keymaps/kwer/readme.md

@@ -31,7 +31,7 @@ RGBLIGHT_ENABLE = yes        # Enable keyboard RGB underglow
 **config.h**
 ```
 [...]
-#define RGB_DI_PIN F7
+#define WS2812_DI_PIN F7
 #define RGBLED_NUM 15        // Change this number to the amount of LEDs on the strip you soldered
 [...]
 ```

keyboards/westfoxtrot/cypher/rev5/config.h

@@ -27,7 +27,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #define GRAVE_ESC_CTRL_OVERRIDE
 
-#define RGB_DI_PIN E6
    #define RGBLED_NUM 10
    #define RGBLIGHT_HUE_STEP 12
    #define RGBLIGHT_SAT_STEP 25

keyboards/westfoxtrot/cypher/rev5/info.json

@@ -16,6 +16,9 @@
       "levels": 5,
       "breathing": true
     },
+    "ws2812": {
+      "pin": "E6"
+    },
     "processor": "atmega32u4",
     "bootloader": "atmel-dfu",
     "layouts": {