hw/arm/stm32f405_soc: Add missing dependency on OR_IRQ

The STM32F405 SoC uses an OR gate on its ADC IRQs.

Fixes: 529fc5f ("hw/arm: Add the STM32F4xx SoC")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210131184449.382425-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/Kconfig

@@ -336,6 +336,7 @@ config STM32F205_SOC
 config STM32F405_SOC
     bool
     select ARM_V7M
+    select OR_IRQ
     select STM32F4XX_SYSCFG
     select STM32F4XX_EXTI