Add the Device Tree binding documentation for the Microsemi Ocelot interrupt controller that is part of the ICPU. It is connected directly to the MIPS core interrupt controller. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>