ARM: dts: STiH407: DT fix s/interrupts-names/interrupt-names/

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Peter Griffin <peter.griffin@linaro.org>

arch/arm/boot/dts/stih407-pinctrl.dtsi

@@ -1157,7 +1157,7 @@ pin-controller-flash {
 			reg = <0x0923f080 0x4>;
 			reg-names = "irqmux";
 			interrupts = <GIC_SPI 192 IRQ_TYPE_NONE>;
-			interrupts-names = "irqmux";
+			interrupt-names = "irqmux";
 			ranges = <0 0x09230000 0x3000>;
 
 			pio40: gpio@09230000 {