soc: st: add stm32u535 support

Adds the u535 soc, similar to the u545 except without the AES HW
accelerator

signed-off-by: Harris Tomy <harristomy@gmail.com>

soc/st/stm32/soc.yml

@@ -206,6 +206,7 @@ family:
     - name: stm32u5a5xx
     - name: stm32u5a9xx
     - name: stm32u5g9xx
+    - name: stm32u535xx
     - name: stm32u545xx
     - name: stm32u575xx
     - name: stm32u585xx

soc/st/stm32/stm32u5x/Kconfig.defconfig.stm32u535xx

@@ -0,0 +1,11 @@
+# ST Microelectronics STM32U535XX MCU
+
+# Copyright (c) 2025 Harris Tomy
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_STM32U535XX
+
+config NUM_IRQS
+	default 126
+
+endif # SOC_STM32U535XX

soc/st/stm32/stm32u5x/Kconfig.soc

@@ -4,6 +4,7 @@
 # Copyright (c) 2023 PSICONTROL nv
 # Copyright (c) 2023 STMicroelectronics
 # Copyright (c) 2025 Charles Dias
+# Copyright (c) 2025 Harris Tomy
 # SPDX-License-Identifier: Apache-2.0
 
 config SOC_SERIES_STM32U5X
@@ -13,6 +14,10 @@ config SOC_SERIES_STM32U5X
 config SOC_SERIES
 	default "stm32u5x" if SOC_SERIES_STM32U5X
 
+config SOC_STM32U535XX
+	bool
+	select SOC_SERIES_STM32U5X
+
 config SOC_STM32U545XX
 	bool
 	select SOC_SERIES_STM32U5X
@@ -49,6 +54,7 @@ config SOC
 	default "stm32u5a5xx" if SOC_STM32U5A5XX
 	default "stm32u5a9xx" if SOC_STM32U5A9XX
 	default "stm32u5g9xx" if SOC_STM32U5G9XX
+	default "stm32u535xx" if SOC_STM32U535XX
 	default "stm32u545xx" if SOC_STM32U545XX
 	default "stm32u575xx" if SOC_STM32U575XX
 	default "stm32u585xx" if SOC_STM32U585XX