irqchip: versatile-fpga: add new compatible for OX810SE SoC

Under the OX810SE, this exact same interface is used as "Reference Peripheral
Specification" Interrupt Controller, so add a new compatible string in order
to support the Oxford Semiconductor OX810SE SoC interrupt controller.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 598ab3f..37dd464 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -227,4 +227,5 @@
 }
 IRQCHIP_DECLARE(arm_fpga, "arm,versatile-fpga-irq", fpga_irq_of_init);
 IRQCHIP_DECLARE(arm_fpga_sic, "arm,versatile-sic", fpga_irq_of_init);
+IRQCHIP_DECLARE(ox810se_rps, "oxsemi,ox810se-rps-irq", fpga_irq_of_init);
 #endif