boards: Convert nucleo_wl55jc to HWM v2

Port the board to HWMv2.

Signed-off-by: Abderrahmane Jarmouni <abderrahmane.jarmouni-ext@st.com>

boards/boards_legacy/arm/nucleo_wl55jc/Kconfig.board

@@ -1,8 +0,0 @@
-# STM32WL55JC Nucleo board configuration
-
-# Copyright (c) 2020 STMicroelectronics
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_NUCLEO_WL55JC
-	bool "Nucleo WL55JC Development Board"
-	depends on SOC_STM32WL55XX

boards/boards_legacy/arm/nucleo_wl55jc/Kconfig.defconfig

@@ -1,11 +0,0 @@
-# STM32WL55JC Nucleo board configuration
-
-# Copyright (c) 2020 STMicroelectronics
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_NUCLEO_WL55JC
-
-config BOARD
-	default "nucleo_wl55jc"
-
-endif # BOARD_NUCLEO_WL55JC

boards/st/nucleo_wl55jc/Kconfig.nucleo_wl55jc

@@ -0,0 +1,5 @@
+# Copyright (c) 2020 STMicroelectronics
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_NUCLEO_WL55JC
+	select SOC_STM32WL55XX

boards/st/nucleo_wl55jc/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: nucleo_wl55jc
+  vendor: st
+  socs:
+    - name: stm32wl55xx

boards/st/nucleo_wl55jc/doc/nucleo_wl55jc.rst

@@ -211,10 +211,10 @@ features:
 
 Other hardware features are not yet supported on this Zephyr port.
 
-The default configuration can be found in the defconfig and dts files:
+The default configuration can be found in:
 
-- :zephyr_file:`boards/arm/nucleo_wl55jc/nucleo_wl55jc_defconfig`
+- :zephyr_file:`boards/st/nucleo_wl55jc/nucleo_wl55jc_defconfig`
-- :zephyr_file:`boards/arm/nucleo_wl55jc/nucleo_wl55jc.dts`
+- :zephyr_file:`boards/st/nucleo_wl55jc/nucleo_wl55jc.dts`
 
 
 Connections and IOs

boards/st/nucleo_wl55jc/nucleo_wl55jc_defconfig

@@ -1,6 +1,3 @@
-CONFIG_SOC_SERIES_STM32WLX=y
-CONFIG_SOC_STM32WL55XX=y
-
 # enable uart driver
 CONFIG_SERIAL=y