feat(stm32mp2-fdts): add board ID OTP in STM32MP257F-EV1

Ad the board ID OTP node for the STM32MP257F-EV1 board.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I394b27f50a8f45c919a1e907e03572b25d958ae4

fdts/stm32mp257f-ev1.dts

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
 /*
- * Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2023-2024, STMicroelectronics - All Rights Reserved
  * Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
  */
 
@@ -29,6 +29,12 @@
 	};
 };
 
+&bsec {
+	board_id: board-id@3d8 {
+		reg = <0x3d8 0x4>;
+	};
+};
+
 &usart2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usart2_pins_a>;