This adds the DT binding for the Freescale IRQSTEER interrupt
multiplexer found in the i.MX8 familiy SoCs.
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>