Keyboard: Partial refactor of the crkbd code (#3600)

* Add display to LED-parameters function
* Improvement of update timing for OLED display (Need TWI_Init)

keyboards/crkbd/keymaps/default/config.h

@@ -18,10 +18,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "../../config.h"
+#pragma once
 
 /* Use I2C or Serial */
 
@@ -50,4 +47,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_HUE_STEP 10
 #define RGBLIGHT_SAT_STEP 17
 #define RGBLIGHT_VAL_STEP 17
-#endif