boards: Convert google_kukui to HWM v2

Port the board to HWMv2.

Signed-off-by: Erwan Gouriou <erwan.gouriou@st.com>

boards/arm/google_kukui/Kconfig.board

@@ -1,14 +0,0 @@
-# Google Kukui EC
-
-# Copyright 2019 The Chromium OS Authors
-# SPDX-License-Identifier: Apache-2.0
-
-config BOARD_GOOGLE_KUKUI
-	bool "Google Kukui EC"
-	depends on SOC_STM32F098XX
-	help
-	  This is the EC (Embedded Controller) inside a Lenovo Chromebook
-	  Duet and 10e Chromebook Tablet. The EC handles battery charging,
-	  keyboard scanning, USB Power Delivery and sensors.
-
-	  So far for Zephyr only a simple serial console and I2C are supported.

boards/arm/google_kukui/Kconfig.defconfig

@@ -1,11 +0,0 @@
-# Google Kukui EC
-
-# Copyright 2019 The Chromium OS Authors
-# SPDX-License-Identifier: Apache-2.0
-
-if BOARD_GOOGLE_KUKUI
-
-config BOARD
-	default "google_kukui"
-
-endif # BOARD_GOOGLE_KUKUI

boards/v2/google/google_kukui/Kconfig.google_kukui

@@ -0,0 +1,5 @@
+# Copyright 2019 The Chromium OS Authors
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_GOOGLE_KUKUI
+	select SOC_STM32F098XX

boards/v2/google/google_kukui/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: google_kukui
+  vendor: google
+  socs:
+    - name: stm32f098xx

boards/v2/google/google_kukui/google_kukui_defconfig

@@ -1,12 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Zephyr Kernel Configuration
-CONFIG_SOC_SERIES_STM32F0X=y
-
 # Platform Configuration
-CONFIG_SOC_STM32F098XX=y
-CONFIG_BOARD_GOOGLE_KUKUI=y
-
 # Serial Drivers
 CONFIG_SERIAL=y
 CONFIG_UART_INTERRUPT_DRIVEN=y