ARM: bcm: Select BRCMSTB_L2_IRQ for bcm2835

The BCM2711 has a number of instances of interrupt controllers handled
by the driver behind the BRCMSTB_L2_IRQ Kconfig option (irq-brcmstb-l2).

Let's select that driver as part of the ARCH_BCM2835 Kconfig option.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20210111142309.193441-1-maxime@cerno.tech

arch/arm/mach-bcm/Kconfig

@@ -161,6 +161,7 @@ config ARCH_BCM2835
 	select ARM_TIMER_SP804
 	select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
 	select BCM2835_TIMER
+	select BRCMSTB_L2_IRQ
 	select PINCTRL
 	select PINCTRL_BCM2835
 	select MFD_CORE

arch/arm64/Kconfig.platforms

@@ -39,6 +39,7 @@ config ARCH_BCM2835
 	select ARM_AMBA
 	select ARM_GIC
 	select ARM_TIMER_SP804
+	select BRCMSTB_L2_IRQ
 	help
 	  This enables support for the Broadcom BCM2837 and BCM2711 SoC.
 	  These SoCs are used in the Raspberry Pi 3 and 4 devices.