arm64: dts: marvell: Fix pca954x i2c-mux node names

"make dtbs_check":

    arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtb: i2c-switch@70: $nodename:0: 'i2c-switch@70' does not match '^(i2c-?)?mux'
	    From schema: Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
    arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtb: i2c-switch@70: Unevaluated properties are not allowed ('#address-cells', '#size-cells', 'i2c@0', 'i2c@1', 'i2c@2' were unexpected)
	    From schema: Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
    ...

Fix this by renaming PCA954x nodes to "i2c-mux", to match the I2C bus
multiplexer/switch DT bindings and the Generic Names Recommendation in
the Devicetree Specification.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

Author: geertu

arch/arm64/boot/dts/marvell/armada-8040-mcbin.dtsi

@@ -135,7 +135,7 @@
 	pinctrl-0 = <&cp0_i2c1_pins>;
 	status = "okay";
 
-	i2c-switch@70 {
+	i2c-mux@70 {
 		compatible = "nxp,pca9548";
 		#address-cells = <1>;
 		#size-cells = <0>;

arch/arm64/boot/dts/marvell/armada-8040-puzzle-m801.dts

@@ -285,7 +285,7 @@
 	pinctrl-0 = <&cp0_i2c1_pins>;
 	status = "okay";
 
-	i2c-switch@70 {
+	i2c-mux@70 {
 		compatible = "nxp,pca9544";
 		#address-cells = <1>;
 		#size-cells = <0>;