feat(stm32mp2-fdts): add fw-config files for STM32MP257F-EV1

Add the Firmware Config DT file for STM32MP257F-EV1 board.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I895ef919b1f388be1e8d25490f25b1e7195984f8

fdts/stm32mp257f-ev1-ca35tdcid-fw-config.dtsi

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+/*
+ * Copyright (C) STMicroelectronics 2024 - All Rights Reserved
+ */
+
+/*
+ * STM32MP25 tf-a firmware config
+ * Project : open
+ * Generated by XLmx tool version 2.2 - 2/27/2024 11:46:17 AM
+ */
+
+/ {
+	dtb-registry {
+		tos_fw {
+			load-address = <0x0 0x82000000>;
+			max-size = <0x2000000>;
+		};
+	};
+};

fdts/stm32mp257f-ev1-fw-config.dts

@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+/*
+ * Copyright (c) 2024, STMicroelectronics - All Rights Reserved
+ */
+
+#include "stm32mp25-fw-config.dtsi"
+#include "stm32mp257f-ev1-ca35tdcid-fw-config.dtsi"