[Keyboard] add keyboard selka40 (#14560)

Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/dyz/selka40/config.h

@@ -0,0 +1,56 @@
+/*
+Copyright 2021 dayatz
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define MANUFACTURER    dyz
+#define PRODUCT         selka40
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 13
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* Bootmagic Lite key configuration */
+#define BOOTMAGIC_LITE_ROW 0
+#define BOOTMAGIC_LITE_COLUMN 0
+
+#define LED_CAPS_LOCK_PIN B1
+#define LED_NUM_LOCK_PIN B3
+#define LED_SCROLL_LOCK_PIN B2
+
+#define TAP_CODE_DELAY 10 // Need this delay for some keys like VOLD/VOLU to work
+#define ENCODERS_PAD_A { D6 }
+#define ENCODERS_PAD_B { D7 }
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 3