boards: seeeduino_xiao: Convert to HWMv2

Port the board to HWMv2.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>

boards/boards_legacy/arm/seeeduino_xiao/Kconfig.defconfig

@@ -1,8 +0,0 @@
-# Seeedunio XIAO board configuration
-
-# Copyright (c) 2020 Google LLC.
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD
-	default "seeeduino_xiao"
-	depends on BOARD_SEEEDUINO_XIAO

boards/seeed_studio/seeeduino_xiao/Kconfig.seeeduino_xiao

@@ -1,8 +1,6 @@
-# Seeeduino XIAO board configuration
-
 # Copyright (c) 2020 Google LLC.
+# Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
 # SPDX-License-Identifier: Apache-2.0
 
 config BOARD_SEEEDUINO_XIAO
-	bool "Seeeduino XIAO"
-	depends on SOC_PART_NUMBER_SAMD21G18A
+	select SOC_SAMD21G18A

boards/seeed_studio/seeeduino_xiao/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: seeeduino_xiao
+  vendor: seeed
+  socs:
+    - name: samd21g18a

boards/seeed_studio/seeeduino_xiao/doc/index.rst

@@ -41,12 +41,12 @@ features:
 +-----------+------------+------------------------------------------+
 | HWINFO    | on-chip    | Hardware info                            |
 +-----------+------------+------------------------------------------+
+| I2C       | on-chip    | Inter-Integrated Circuit                 |
++-----------+------------+------------------------------------------+
 | NVIC      | on-chip    | nested vector interrupt controller       |
 +-----------+------------+------------------------------------------+
 | SPI       | on-chip    | Serial Peripheral Interface ports        |
 +-----------+------------+------------------------------------------+
-| I2C       | on-chip    | Inter-Integrated Circuit                 |
-+-----------+------------+------------------------------------------+
 | SYSTICK   | on-chip    | systick                                  |
 +-----------+------------+------------------------------------------+
 | USART     | on-chip    | Serial ports                             |
@@ -59,7 +59,7 @@ features:
 Other hardware features are not currently supported by Zephyr.
 
 The default configuration can be found in the Kconfig file
-:zephyr_file:`boards/arm/seeeduino_xiao/seeeduino_xiao_defconfig`.
+:zephyr_file:`boards/seeed/seeeduino_xiao/seeeduino_xiao_defconfig`.
 
 Connections and IOs
 ===================

boards/seeed_studio/seeeduino_xiao/seeeduino_xiao.yaml

@@ -2,20 +2,21 @@ identifier: seeeduino_xiao
 name: Seeeduino XIAO
 type: mcu
 arch: arm
-ram: 32
-flash: 256
 toolchain:
   - zephyr
   - gnuarmemb
   - xtools
+flash: 256
+ram: 32
 supported:
   - dma
   - dac
   - gpio
   - hwinfo
-  - spi
   - i2c
+  - spi
   - uart
+  - usb
   - usb_device
   - watchdog
 vendor: seeed

boards/seeed_studio/seeeduino_xiao/seeeduino_xiao_defconfig

@@ -1,14 +1,14 @@
+# Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
 # SPDX-License-Identifier: Apache-2.0
 
-CONFIG_SOC_SERIES_SAMD21=y
-CONFIG_SOC_PART_NUMBER_SAMD21G18A=y
-CONFIG_BOARD_SEEEDUINO_XIAO=y
 CONFIG_SOC_ATMEL_SAMD_XOSC32K=y
 CONFIG_SOC_ATMEL_SAMD_XOSC32K_AS_MAIN=y
+
+CONFIG_BUILD_OUTPUT_UF2=y
+CONFIG_BOOTLOADER_BOSSA=y
+CONFIG_BOOTLOADER_BOSSA_ADAFRUIT_UF2=y
+
 CONFIG_CONSOLE=y
+CONFIG_SERIAL=y
 CONFIG_UART_CONSOLE=y
 CONFIG_UART_INTERRUPT_DRIVEN=y
-CONFIG_SERIAL=y
-CONFIG_BOOTLOADER_BOSSA=y
-CONFIG_BOOTLOADER_BOSSA_ADAFRUIT_UF2=y
-CONFIG_BUILD_OUTPUT_UF2=y