Merge tag 'zynqmp-dt-for-4.5' of https://github.com/Xilinx/linux-xlnx into next/dt64

Merge tag 'zynqmp-dt-for-4.5' of https://github.com/Xilinx/linux-xlnx into next/dt64

arm: Xilinx ZynqMP dt patches for v4.5

- Label GPIO controller as interrupt controller

* tag 'zynqmp-dt-for-4.5' of https://github.com/Xilinx/linux-xlnx:
  ARM64: zynqmp: DT: Add interrupt-controller property to GPIO

Signed-off-by: Olof Johansson <olof@lixom.net>