Add tzarc/ghoul. (#18562)

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/tzarc/ghoul/config.h

@@ -0,0 +1,19 @@
+// Copyright 2018-2022 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#include "config_common.h"
+
+// Matrix
+#define MATRIX_SHIFT_REGISTER_COUNT 5
+//#define MATRIX_ROWS 6 // actually defined in info.json: 5 shift registers, plus one row for extras (i.e. encoder pushbutton read)
+//#define MATRIX_COLS 8 // actually defined in info.json: 8 bits per register
+
+// EEPROM configuration
+#define EXTERNAL_EEPROM_BYTE_COUNT 8192
+#define EXTERNAL_EEPROM_PAGE_SIZE 64 // it's FRAM, so it doesn't actually matter, this just sets the RAM buffer
+
+// RGB configuration
+#define RGB_MATRIX_LED_COUNT 40
+#define RGBLED_NUM 40       // TBD: Once convergence with these defines occurs, remove.
+#define DRIVER_LED_TOTAL 40 // TBD: Once convergence with these defines occurs, remove.