soc/arm: add support for additonal stm32wl socs

This commit adds support for stm32wle4xx, stm32wle5xx single core socs,
as well as stm32wl54 dual core soc.

Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>

soc/arm/st_stm32/stm32wl/Kconfig.defconfig.stm32wl54xx

@@ -0,0 +1,14 @@
+# STMicroelectronics STM32WL54 MCU
+
+# Copyright (c) 2021 Thomas Stranger
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32WL54XX
+
+config SOC
+	default "stm32wl54xx"
+
+config NUM_IRQS
+	default 62
+
+endif # SOC_STM32WL54XX

soc/arm/st_stm32/stm32wl/Kconfig.defconfig.stm32wle4xx

@@ -0,0 +1,14 @@
+# STMicroelectronics STM32WLE4 MCU
+
+# Copyright (c) 2021 Thomas Stranger
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32WLE4XX
+
+config SOC
+	default "stm32wle4xx"
+
+config NUM_IRQS
+	default 62
+
+endif # SOC_STM32WLE4XX

soc/arm/st_stm32/stm32wl/Kconfig.defconfig.stm32wle5xx

@@ -0,0 +1,14 @@
+# STMicroelectronics STM32WLE5 MCU
+
+# Copyright (c) 2021 Thomas Stranger
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32WLE5XX
+
+config SOC
+	default "stm32wle5xx"
+
+config NUM_IRQS
+	default 62
+
+endif # SOC_STM32WLE5XX

soc/arm/st_stm32/stm32wl/Kconfig.soc

@@ -7,6 +7,15 @@ choice
 	prompt "STM32WLx MCU Selection"
 	depends on SOC_SERIES_STM32WLX
 
+config SOC_STM32WLE4XX
+	bool "STM32WLE4XX"
+
+config SOC_STM32WLE5XX
+	bool "STM32WLE5XX"
+
+config SOC_STM32WL54XX
+	bool "STM32WL54XX"
+
 config SOC_STM32WL55XX
 	bool "STM32WL55XX"