arm64: dts: ls1043a-rdb: add the DTS for DSPI support

This patch adds dts nodes for DSPI on LS1043A-RDB.
Signed-off-by: Yunhui Cui <B56489@freescale.com>
Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts

@@ -107,6 +107,19 @@ cpld: board-control@2,0 {
 		};
 };
 
+&dspi0 {
+	bus-num = <0>;
+	status = "okay";
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "n25q128a13", "jedec,spi-nor";  /* 16MB */
+		reg = <0>;
+		spi-max-frequency = <1000000>; /* input clock */
+	};
+};
+
 &duart0 {
 	status = "okay";
 };