arm64: dts: broadcom: 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>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dts

@@ -203,7 +203,7 @@
 
 &qspi {
 	bspi-sel = <0>;
-	flash: m25p80@0 {
+	flash: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "m25p80";

arch/arm64/boot/dts/broadcom/northstar2/ns2-xmc.dts

@@ -146,7 +146,7 @@
 };
 
 &qspi {
-	flash: m25p80@0 {
+	flash: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "m25p80";

arch/arm64/boot/dts/broadcom/stingray/bcm958742k.dts

@@ -61,7 +61,7 @@
 	cs-gpios = <&gpio_hsls 34 0>;
 	status = "okay";
 
-	spi-flash@0 {
+	flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <20000000>;
@@ -76,7 +76,7 @@
 	cs-gpios = <&gpio_hsls 96 0>;
 	status = "okay";
 
-	spi-flash@0 {
+	flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <20000000>;