soc: arm: st_stm32: stm32f3: Add support for STM32F302x8

Add Kconfig support for STM32F302x8 SoC.

Signed-off-by: Galen Seitz <galens@seitzassoc.com>

soc/arm/st_stm32/stm32f3/Kconfig.defconfig.stm32f302x8

@@ -0,0 +1,29 @@
+# Kconfig - ST Microelectronics STM32F302X8 MCU
+#
+# Copyright (c) 2018 Seitz & Associates
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+if SOC_STM32F302X8
+
+config SOC
+	string
+	default "stm32f302x8"
+
+config FLASH_PAGE_SIZE
+	hex
+	default 0x800
+
+config NUM_IRQS
+	int
+	default 82
+
+if GPIO_STM32
+
+config GPIO_STM32_PORTF
+	default y
+
+endif # GPIO_STM32
+
+endif # SOC_STM32F302X8

soc/arm/st_stm32/stm32f3/Kconfig.soc

@@ -9,6 +9,9 @@ choice
 prompt "STM32F3x MCU Selection"
 depends on SOC_SERIES_STM32F3X
 
+config SOC_STM32F302X8
+	bool "STM32F302X8"
+
 config SOC_STM32F303XC
 	bool "STM32F303XC"
 	select CPU_HAS_ARM_MPU