arm64: dts: broadcom: bcmbca: bcm4908: fix NAND interrupt name

This fixes:
arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dtb: nand-controller@1800: interrupt-names:0: 'nand_ctlrdy' was expected
        From schema: Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dtb: nand-controller@1800: Unevaluated properties are not allowed ('interrupt-names' was unexpected)
        From schema: Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/all/20230228144400.21689-1-zajec5@gmail.com/
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi

@@ -556,7 +556,7 @@
 			reg = <0x1800 0x600>, <0x2000 0x10>;
 			reg-names = "nand", "nand-int-base";
 			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
-			interrupt-names = "nand";
+			interrupt-names = "nand_ctlrdy";
 			status = "okay";
 
 			nandcs: nand@0 {