boards: Convert pandora_stm32l475 to HWM v2

Port the board to HWMv2.

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

boards/alientek/pandora_stm32l475/Kconfig.pandora_stm32l475

@@ -0,0 +1,5 @@
+# Copyright (c) 2023 Tisilicon
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_PANDORA_STM32L475
+	select SOC_STM32L475XX

boards/alientek/pandora_stm32l475/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: pandora_stm32l475
+  vendor: alientek
+  socs:
+    - name: stm32l475xx

boards/alientek/pandora_stm32l475/doc/index.rst

@@ -127,7 +127,7 @@ Other hardware features are not yet supported on this Zephyr port.
 
 The default configuration can be found in the defconfig file:
 
-	``boards/arm/pandora_stm32l475/pandora_stm32l475_defconfig``
+	``boards/alientek/pandora_stm32l475/pandora_stm32l475_defconfig``
 
 
 Connections and IOs

boards/alientek/pandora_stm32l475/pandora_stm32l475_defconfig

@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_STM32L4X=y
-CONFIG_SOC_STM32L475XX=y
-
 # Enable MPU
 CONFIG_ARM_MPU=y
 

boards/boards_legacy/arm/pandora_stm32l475/Kconfig.board

@@ -1,8 +0,0 @@
-# STM32L475 Pandora board configuration
-
-# Copyright (c) 2023 Tisilicon
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_PANDORA_STM32L475
-	bool "STM32L475 Pandora Development Board"
-	depends on SOC_STM32L475XX

boards/boards_legacy/arm/pandora_stm32l475/Kconfig.defconfig

@@ -1,11 +0,0 @@
-# STM32L475 Pandora board configuration
-
-# Copyright (c) 2023 Tisilicon
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_PANDORA_STM32L475
-
-config BOARD
-	default "pandora_stm32l475"
-
-endif # BOARD_PANDORA_STM32L475