arm64: broadcom: Removed forced select of interrupt controllers

Now that the various second level interrupt controllers have been moved
to IRQCHIP_PLATFORM_DRIVER and they do default to ARCH_BRCMSTB and
ARCH_BCM2835 where relevant, remove their forced selection from the
machine entry to allow an user to build them as modules.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211020184859.2705451-12-f.fainelli@gmail.com

arch/arm64/Kconfig.platforms

@@ -44,7 +44,6 @@ 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.
@@ -82,8 +81,6 @@ config ARCH_BITMAIN
 config ARCH_BRCMSTB
 	bool "Broadcom Set-Top-Box SoCs"
 	select ARCH_HAS_RESET_CONTROLLER
-	select BCM7038_L1_IRQ
-	select BRCMSTB_L2_IRQ
 	select GENERIC_IRQ_CHIP
 	select PINCTRL
 	help