Merge tag 'irqchip-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/maz...

First drop of irqchip updates for 4.8 from Marc Zyngier:

 - Fix a few bugs in configuring the default trigger from the irqdomain layer
 - Make the genirq layer PM aware
 - Add PM capability to the ARM GIC driver
 - Add support for 2-level translation tables to the GICv3 ITS driver