arm64: dts: mt8183-kukui: align SPI NOR node name with dtschema

The node names should be generic and SPI NOR dtschema expects "flash".
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220407142143.293740-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi

@@ -849,7 +849,7 @@ &spi1 {
 	mediatek,pad-select = <0>;
 	status = "okay";
 
-	w25q64dw: spi-flash@0 {
+	w25q64dw: flash@0 {
 		compatible = "winbond,w25q64dw", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <25000000>;