spi: dt-bindings: mediatek,spi-mtk-nor: Fix example 'interrupts' property

A phandle for 'interrupts' value is wrong and should be one or more numbers.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220106182518.1435497-9-robh@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml

@@ -77,7 +77,7 @@ examples:
       nor_flash: spi@1100d000 {
         compatible = "mediatek,mt8173-nor";
         reg = <0 0x1100d000 0 0xe0>;
-        interrupts = <&spi_flash_irq>;
+        interrupts = <1>;
         clocks = <&pericfg CLK_PERI_SPI>, <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
         clock-names = "spi", "sf";
         #address-cells = <1>;