ARM: shmobile: sh73a0: tidyup DT node naming

According to ePAPR spec,
this patch tidies up DT node name and related clock.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi
index fcf2688..78f7201a 100644
--- a/arch/arm/boot/dts/sh73a0.dtsi
+++ b/arch/arm/boot/dts/sh73a0.dtsi
@@ -190,7 +190,7 @@
 		status = "disabled";
 	};
 
-	mmcif: mmcif@e6bd0000 {
+	mmcif: mmc@e6bd0000 {
 		compatible = "renesas,sh-mmcif";
 		reg = <0xe6bd0000 0x100>;
 		interrupt-parent = <&gic>;
@@ -200,7 +200,7 @@
 		status = "disabled";
 	};
 
-	sdhi0: sdhi@ee100000 {
+	sdhi0: sd@ee100000 {
 		compatible = "renesas,sdhi-r8a7740";
 		reg = <0xee100000 0x100>;
 		interrupt-parent = <&gic>;
@@ -212,7 +212,7 @@
 	};
 
 	/* SDHI1 and SDHI2 have no CD pins, no need for CD IRQ */
-	sdhi1: sdhi@ee120000 {
+	sdhi1: sd@ee120000 {
 		compatible = "renesas,sdhi-r8a7740";
 		reg = <0xee120000 0x100>;
 		interrupt-parent = <&gic>;
@@ -223,7 +223,7 @@
 		status = "disabled";
 	};
 
-	sdhi2: sdhi@ee140000 {
+	sdhi2: sd@ee140000 {
 		compatible = "renesas,sdhi-r8a7740";
 		reg = <0xee140000 0x100>;
 		interrupt-parent = <&gic>;