arm64: dts: renesas: r8a77995: Add SDHI (MMC) support

R-Car D3 has only one SDHI controller.
Signed-off-by: NUlrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a77995.dtsi

@@ -438,6 +438,18 @@
 			status = "disabled";
 		};
 
+		sdhi2: sd@ee140000 {
+			compatible = "renesas,sdhi-r8a77995",
+				     "renesas,rcar-gen3-sdhi";
+			reg = <0 0xee140000 0 0x2000>;
+			interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 312>;
+			max-frequency = <200000000>;
+			power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;
+			resets = <&cpg 312>;
+			status = "disabled";
+		};
+
 		ehci0: usb@ee080100 {
 			compatible = "generic-ehci";
 			reg = <0 0xee080100 0 0x100>;