boards: Convert stm32h573i_dk to HWM v2

Port the board to HWMv2.

Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>

boards/boards_legacy/arm/stm32h573i_dk/Kconfig.board

@@ -1,10 +0,0 @@
-# STM32H573I-DK Discovery kit board configuration
-#
-# Copyright (c) 2023 STMicroelectronics
-#
-# SPDX-License-Identifier: Apache-2.0
-#
-
-config BOARD_STM32H573I_DK
-	bool "STM32H573I-DK Discovery Development Board"
-	depends on SOC_STM32H573XX

boards/st/stm32h573i_dk/Kconfig.defconfig

@@ -7,9 +7,6 @@
 
 if BOARD_STM32H573I_DK
 
-config BOARD
-	default "stm32h573i_dk"
-
 if NETWORKING
 
 config NET_L2_ETHERNET

boards/st/stm32h573i_dk/Kconfig.stm32h573i_dk

@@ -0,0 +1,5 @@
+# Copyright (c) 2023 STMicroelectronics
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_STM32H573I_DK
+	select SOC_STM32H573XX

boards/st/stm32h573i_dk/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: stm32h573i_dk
+  vendor: st
+  socs:
+    - name: stm32h573xx

boards/st/stm32h573i_dk/doc/index.rst

@@ -200,8 +200,8 @@ The default configuration can be found in the defconfig and dts files:
 
 - Secure target:
 
-  - :zephyr_file:`boards/arm/stm32h573i_dk/stm32h573i_dk_defconfig`
-  - :zephyr_file:`boards/arm/stm32h573i_dk/stm32h573i_dk.dts`
+  - :zephyr_file:`boards/st/stm32h573i_dk/stm32h573i_dk_defconfig`
+  - :zephyr_file:`boards/st/stm32h573i_dk/stm32h573i_dk.dts`
 
 Zephyr board options
 ====================

boards/st/stm32h573i_dk/stm32h573i_dk_defconfig

@@ -1,9 +1,6 @@
 # Copyright (c) 2023 STMicroelectronics
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_STM32H5X=y
-CONFIG_SOC_STM32H573XX=y
-
 # Enable MPU
 CONFIG_ARM_MPU=y