Update RGB Matrix configuration for Ergodox EZ

keyboards/ergodox_ez/ergodox_ez.h

@@ -109,6 +109,7 @@ inline void ergodox_led_all_set(uint8_t n)
 
 enum ergodox_ez_keycodes {
     LED_LEVEL = SAFE_RANGE,
+    TOGGLE_LAYER_COLOR,
     EZ_SAFE_RANGE,
 };
 
@@ -116,6 +117,8 @@ typedef union {
   uint32_t raw;
   struct {
     uint8_t    led_level :3;
+    bool       disable_layer_led   :1;
+    bool       rgb_matrix_enable   :1;
   };
 } keyboard_config_t;