Add UUGear Witty Pi 5 HAT+ board header file (#2518)

* Add UUGear Witty Pi 5 HAT+ board header file

* Update uugear_wittypi5_hat_plus.h

Fixes detected errors

src/boards/include/boards/uugear_wittypi5_hat_plus.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2025 Dun Cat B.V.(UUGear)
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+// -----------------------------------------------------
+// NOTE: THIS HEADER IS ALSO INCLUDED BY ASSEMBLER SO
+//       SHOULD ONLY CONSIST OF PREPROCESSOR DIRECTIVES
+// -----------------------------------------------------
+
+// This header may be included by other board headers as "boards/uugear_wittypi5_hat_plus.h"
+
+#ifndef _BOARDS_UUGEAR_WITTYPI5_HAT_PLUS_H
+#define _BOARDS_UUGEAR_WITTYPI5_HAT_PLUS_H
+
+pico_board_cmake_set(PICO_PLATFORM, rp2350)
+
+// For board detection
+#define UUGEAR_WITTYPI5_HAT_PLUS
+
+// --- RP2350 VARIANT ---
+#define PICO_RP2350A 1
+
+// --- UART ---
+#ifndef PICO_DEFAULT_UART
+#define PICO_DEFAULT_UART 0
+#endif
+#ifndef PICO_DEFAULT_UART_TX_PIN
+#define PICO_DEFAULT_UART_TX_PIN 0
+#endif
+#ifndef PICO_DEFAULT_UART_RX_PIN
+#define PICO_DEFAULT_UART_RX_PIN 1
+#endif
+
+// --- LED ---
+#ifndef PICO_DEFAULT_LED_PIN
+#define PICO_DEFAULT_LED_PIN 22
+#endif
+
+// --- I2C ---
+#ifndef PICO_DEFAULT_I2C
+#define PICO_DEFAULT_I2C 0
+#endif
+#ifndef PICO_DEFAULT_I2C_SDA_PIN
+#define PICO_DEFAULT_I2C_SDA_PIN 4
+#endif
+#ifndef PICO_DEFAULT_I2C_SCL_PIN
+#define PICO_DEFAULT_I2C_SCL_PIN 5
+#endif
+
+// --- FLASH ---
+#define PICO_BOOT_STAGE2_CHOOSE_W25Q080 1
+
+#ifndef PICO_FLASH_SPI_CLKDIV
+#define PICO_FLASH_SPI_CLKDIV 2
+#endif
+
+pico_board_cmake_set_default(PICO_FLASH_SIZE_BYTES, (16 * 1024 * 1024))
+#ifndef PICO_FLASH_SIZE_BYTES
+#define PICO_FLASH_SIZE_BYTES (16 * 1024 * 1024)
+#endif
+
+pico_board_cmake_set_default(PICO_RP2350_A2_SUPPORTED, 1)
+#ifndef PICO_RP2350_A2_SUPPORTED
+#define PICO_RP2350_A2_SUPPORTED 1
+#endif
+
+// Sometimes the xosc may take longer to stabilize
+#ifndef PICO_XOSC_STARTUP_DELAY_MULTIPLIER
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
+#endif
+
+#endif