boards: arm: apollo4p_evb: Convert to v2

Converts the board to hwmv2

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>

boards/ambiq/apollo4p_evb/Kconfig.apollo4p_evb

@@ -3,5 +3,4 @@
 # Copyright (c) 2023 Antmicro <www.antmicro.com>
 
 config BOARD_APOLLO4P_EVB
-	bool "Ambiq Apollo4 Plus Evaluation Board"
-	depends on SOC_APOLLO4P
+	select SOC_APOLLO4P

boards/ambiq/apollo4p_evb/apollo4p_evb_defconfig

@@ -2,7 +2,6 @@
 #
 # Copyright (c) 2023 Antmicro <www.antmicro.com>
 
-CONFIG_SOC_SERIES_APOLLO4X=y
 CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_SERIAL=y

boards/ambiq/apollo4p_evb/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: apollo4p_evb
+  vendor: Ambiq
+  socs:
+  - name: apollo4p

boards/boards_legacy/arm/apollo4p_evb/Kconfig.defconfig

@@ -1,7 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-#
-# Copyright (c) 2023 Antmicro <www.antmicro.com>
-
-config BOARD
-	default "apollo4p_evb"
-	depends on BOARD_APOLLO4P_EVB