ARM: shmobile: r8a73a4: add MMCIF and SDHI DT templates

This adds DT templates for all MMCIF and SDHI controllers on r8a73a4.
They are added with status="disabled". To use them platform-specific
DTs have to enable the required ones.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a73a4.dtsi

@@ -166,4 +166,49 @@ i2c8: i2c@e6570000 {
 		interrupt-parent = <&gic>;
 		interrupts = <0 173 0x4>;
 	};
+
+	mmcif0: mmcif@ee200000 {
+		compatible = "renesas,sh-mmcif";
+		reg = <0 0xee200000 0 0x80>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 169 0x4>;
+		reg-io-width = <4>;
+		status = "disabled";
+	};
+
+	mmcif1: mmcif@ee220000 {
+		compatible = "renesas,sh-mmcif";
+		reg = <0 0xee220000 0 0x80>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 170 0x4>;
+		reg-io-width = <4>;
+		status = "disabled";
+	};
+
+	sdhi0: sdhi@ee100000 {
+		compatible = "renesas,r8a73a4-sdhi";
+		reg = <0 0xee100000 0 0x100>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 165 4>;
+		cap-sd-highspeed;
+		status = "disabled";
+	};
+
+	sdhi1: sdhi@ee120000 {
+		compatible = "renesas,r8a73a4-sdhi";
+		reg = <0 0xee120000 0 0x100>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 166 4>;
+		cap-sd-highspeed;
+		status = "disabled";
+	};
+
+	sdhi2: sdhi@ee140000 {
+		compatible = "renesas,r8a73a4-sdhi";
+		reg = <0 0xee140000 0 0x100>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 167 4>;
+		cap-sd-highspeed;
+		status = "disabled";
+	};
 };