ARM: dts: uniphier: add SD/MMC host controller nodes

This host controller is available for all UniPhier SoCs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-ph1-ld4-ref.dts b/arch/arm/dts/uniphier-ph1-ld4-ref.dts
index f62916d..d7b0007 100644
--- a/arch/arm/dts/uniphier-ph1-ld4-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-ld4-ref.dts
@@ -51,6 +51,10 @@
 	status = "okay";
 };
 
+&sd {
+	status = "okay";
+};
+
 &usb0 {
 	status = "okay";
 };