arm64: dts: freescale: align SPI NOR node name with dtschema

The node names should be generic and SPI NOR dtschema expects "flash".
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/fsl-ls208xa-qds.dtsi

@@ -104,21 +104,21 @@
 
 &dspi {
 	status = "okay";
-	dflash0: n25q128a@0 {
+	dflash0: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "st,m25p80";
 		spi-max-frequency = <3000000>;
 		reg = <0>;
 	};
-	dflash1: sst25wf040b@1 {
+	dflash1: flash@1 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "st,m25p80";
 		spi-max-frequency = <3000000>;
 		reg = <1>;
 	};
-	dflash2: en25s64@2 {
+	dflash2: flash@2 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "st,m25p80";
@@ -129,7 +129,7 @@
 
 &qspi {
 	status = "okay";
-	flash0: s25fl256s1@0 {
+	flash0: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "st,m25p80";
@@ -138,7 +138,7 @@
 		spi-tx-bus-width = <4>;
 		reg = <0>;
 	};
-	flash2: s25fl256s1@2 {
+	flash2: flash@2 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "st,m25p80";

arch/arm64/boot/dts/freescale/fsl-ls208xa-rdb.dtsi

@@ -100,7 +100,7 @@
 
 &dspi {
 	status = "okay";
-	dflash0: n25q512a@0 {
+	dflash0: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "st,m25p80";

arch/arm64/boot/dts/freescale/imx8mm-emcon.dtsi

@@ -98,7 +98,7 @@
 	pinctrl-1 = <&pinctrl_flexspi1>;
 	status = "okay";
 
-	flash0: spi-flash@0 {
+	flash0: flash@0 {
 		reg = <0>;
 		#address-cells = <1>;
 		#size-cells = <1>;

arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi

@@ -66,7 +66,7 @@
 	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
 	status = "okay";
 
-	spi-flash@0 {
+	flash@0 {
 		compatible = "mxicy,mx25r1635f", "jedec,spi-nor";
 		spi-max-frequency = <80000000>;
 		reg = <0>;