irqchip/stm32mp-exti: CONFIG_STM32MP_EXTI should not default to y when compile-testing

Merely enabling compile-testing should not enable additional functionality.

Fixes: 0be58e0 ("irqchip/stm32mp-exti: Allow building as module")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/ef5ec063b23522058f92087e072419ea233acfe9.1733243115.git.geert+renesas@glider.be

Author: geertu

drivers/irqchip/Kconfig

@@ -415,7 +415,7 @@ config PARTITION_PERCPU
 config STM32MP_EXTI
 	tristate "STM32MP extended interrupts and event controller"
 	depends on (ARCH_STM32 && !ARM_SINGLE_ARMV7M) || COMPILE_TEST
-	default y
+	default ARCH_STM32 && !ARM_SINGLE_ARMV7M
 	select IRQ_DOMAIN_HIERARCHY
 	select GENERIC_IRQ_CHIP
 	help