arm64: dts: toshiba: Use recommended node names

Update Toshiba TMPV7708 node name to the recommended standard node
names. Generally, node names and paths aren't considered ABI, so it
is safe to change them.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@mail.toshiba>
Link: https://patch.msgid.link/20251216180055.2793215-2-robh@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Author: robherring

arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts

@@ -43,7 +43,7 @@
 	phy-handle = <&phy0>;
 	phy-mode = "rgmii-id";
 
-	mdio0 {
+	mdio {
 		#address-cells = <1>;
 		#size-cells = <0>;
 		compatible = "snps,dwmac-mdio";

arch/arm64/boot/dts/toshiba/tmpv7708-visrobo-vrb.dts

@@ -43,7 +43,7 @@
 	phy-handle = <&phy0>;
 	phy-mode = "rgmii-id";
 
-	mdio0 {
+	mdio {
 		#address-cells = <1>;
 		#size-cells = <0>;
 		compatible = "snps,dwmac-mdio";

arch/arm64/boot/dts/toshiba/tmpv7708-visrobo-vrc.dtsi

@@ -26,7 +26,7 @@
 &spi0 {
 	status = "okay";
 
-	mmc-slot@0 {
+	mmc@0 {
 		compatible = "mmc-spi-slot";
 		reg = <0>;
 		gpios = <&gpio 15 GPIO_ACTIVE_LOW>;