Tegra30: fdt: Add SDMMC (sdhci) nodes for T30 boards (Cardhu for now)

Took these values directly from the kernel dts files.

Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/dts/tegra30.dtsi b/arch/arm/dts/tegra30.dtsi
index 9483e80..ccf154f 100644
--- a/arch/arm/dts/tegra30.dtsi
+++ b/arch/arm/dts/tegra30.dtsi
@@ -184,4 +184,36 @@
 		clocks = <&tegra_car 105>;
 		status = "disabled";
 	};
+
+	sdhci@78000000 {
+		compatible = "nvidia,tegra30-sdhci";
+		reg = <0x78000000 0x200>;
+		interrupts = <0 14 0x04>;
+		clocks = <&tegra_car 14>;
+		status = "disabled";
+	};
+
+	sdhci@78000200 {
+		compatible = "nvidia,tegra30-sdhci";
+		reg = <0x78000200 0x200>;
+		interrupts = <0 15 0x04>;
+		clocks = <&tegra_car 9>;
+		status = "disabled";
+	};
+
+	sdhci@78000400 {
+		compatible = "nvidia,tegra30-sdhci";
+		reg = <0x78000400 0x200>;
+		interrupts = <0 19 0x04>;
+		clocks = <&tegra_car 69>;
+		status = "disabled";
+	};
+
+	sdhci@78000600 {
+		compatible = "nvidia,tegra30-sdhci";
+		reg = <0x78000600 0x200>;
+		interrupts = <0 31 0x04>;
+		clocks = <&tegra_car 15>;
+		status = "disabled";
+	};
 };