[Keyboard] Add kudox game rev2 (#8529)

* Add Kudox Game rev2.

* Add the keymap of Kudox Game a layer for regulating RGB.

* Modified rgblight_init when RGBLIGHT_ENABLE=no.

* Remove invalid codes.

* Modified *init* function right intention of framework.

keyboards/kudox_game/kudox_game.h

@@ -19,5 +19,8 @@
 #ifdef KEYBOARD_kudox_game_rev1
     #include "rev1.h"
 #endif
+#ifdef KEYBOARD_kudox_game_rev2
+    #include "rev2.h"
+#endif
 
 #include "quantum.h"