soc: arm: stm32f4: group stm32f412xx in a Kconfig for the serie

A new stm32f412vx devices is introduced.
The soc devices stm32f412cx, stm32f412vx, stm32f412zx are
removed to have a more generic stm32f412xx Kconfig.
The stm32cube modules stm32f412cx/vx/zx exists.

Signed-off-by: Francois Ramu <francois.ramu@st.com>

soc/arm/st_stm32/stm32f4/Kconfig.defconfig.stm32f412cg

@@ -1,14 +0,0 @@
-# ST STM32F412CG MCU configuration options
-
-# Copyright (c) 2018, I-SENSE group of ICCS
-# SPDX-License-Identifier: Apache-2.0
-
-if SOC_STM32F412CG
-
-config SOC
-	default "stm32f412cx"
-
-config NUM_IRQS
-	default 97
-
-endif # SOC_STM32F412CG

soc/arm/st_stm32/stm32f4/Kconfig.defconfig.stm32f412xx

@@ -0,0 +1,34 @@
+# ST STM32F412XX MCU configuration options
+
+# Copyright (c) 2021 STMicroelectronics.
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32F412CX
+
+config SOC
+	default "stm32f412cx"
+
+config NUM_IRQS
+	default 97
+
+endif # SOC_STM32F412CX
+
+if SOC_STM32F412VX
+
+config SOC
+	default "stm32f412vx"
+
+config NUM_IRQS
+	default 97
+
+endif # SOC_STM32F412VX
+
+if SOC_STM32F412ZX
+
+config SOC
+	default "stm32f412zx"
+
+config NUM_IRQS
+	default 97
+
+endif # SOC_STM32F412ZX

soc/arm/st_stm32/stm32f4/Kconfig.defconfig.stm32f412zg

@@ -1,14 +0,0 @@
-# ST STM32F412ZG MCU configuration options
-
-# Copyright (c) 2017 Florian Vaussard, HEIG-VD
-# SPDX-License-Identifier: Apache-2.0
-
-if SOC_STM32F412ZG
-
-config SOC
-	default "stm32f412zx"
-
-config NUM_IRQS
-	default 97
-
-endif # SOC_STM32F412ZG

soc/arm/st_stm32/stm32f4/Kconfig.soc

@@ -28,11 +28,14 @@ config SOC_STM32F410RX
 config SOC_STM32F411XE
 	bool "STM32F411XE"
 
-config SOC_STM32F412CG
-	bool "STM32F412CG"
+config SOC_STM32F412CX
+	bool "STM32F412CX"
 
-config SOC_STM32F412ZG
-	bool "STM32F412ZG"
+config SOC_STM32F412VX
+	bool "STM32F412VX"
+
+config SOC_STM32F412ZX
+	bool "STM32F412ZX"
 
 config SOC_STM32F413XX
 	bool "STM32F413XX"