Merge tag 'irqchip-4.15' of...

Merge tag 'irqchip-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates for 4.15 from Marc Zyngier

- GICv4 updates (improved performance, errata workarounds)
- Workaround for Socionext's pre-ITS erratum
- Meson GPIO interrupt controller
- BCM7271 L2 interrupt controller
- GICv3 range selector support
- various cleanups