arm64: dts: marvell: Remove unnecessary #address-cells/#size-cells under flashes

By using the new binding for the partitions for the flashes we don't need
anymore to use #size-cells and #address-cells at the flash node level.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-7040-db.dts

@@ -66,8 +66,6 @@ &spi0 {
 	status = "okay";
 
 	spi-flash@0 {
-		#address-cells = <1>;
-		#size-cells = <1>;
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
@@ -169,8 +167,6 @@ &cp0_spi1 {
 	status = "okay";
 
 	spi-flash@0 {
-		#address-cells = <0x1>;
-		#size-cells = <0x1>;
 		compatible = "jedec,spi-nor";
 		reg = <0x0>;
 		spi-max-frequency = <20000000>;

arch/arm64/boot/dts/marvell/armada-8040-db.dts

@@ -81,8 +81,6 @@ &spi0 {
 	status = "okay";
 
 	spi-flash@0 {
-		#address-cells = <1>;
-		#size-cells = <1>;
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
@@ -214,8 +212,6 @@ &cp1_spi1 {
 	status = "okay";
 
 	spi-flash@0 {
-		#address-cells = <0x1>;
-		#size-cells = <0x1>;
 		compatible = "jedec,spi-nor";
 		reg = <0x0>;
 		spi-max-frequency = <20000000>;