arm64: dts: qcom: ipq6018: fix NAND node name

Per schema it should be nand-controller@79b0000 instead of nand@79b0000.
Fix it to match nand-controller.yaml requirements.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220927201218.1264506-1-robimarko@gmail.com

arch/arm64/boot/dts/qcom/ipq6018.dtsi

@@ -348,7 +348,7 @@ qpic_bam: dma-controller@7984000 {
 			status = "disabled";
 		};
 
-		qpic_nand: nand@79b0000 {
+		qpic_nand: nand-controller@79b0000 {
 			compatible = "qcom,ipq6018-nand";
 			reg = <0x0 0x079b0000 0x0 0x10000>;
 			#address-cells = <1>;