ARM: dts: uniphier: add device nodes for MIO control block

This block provides clock and reset control for MIO (Media I/O)
hardware blocks such as USB2.0, SD card, eMMC, etc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-ph1-sld8.dtsi b/arch/arm/dts/uniphier-ph1-sld8.dtsi
index 7a26b4a..b9ef401 100644
--- a/arch/arm/dts/uniphier-ph1-sld8.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld8.dtsi
@@ -157,6 +157,12 @@
 	clock-frequency = <80000000>;
 };
 
+&mio {
+	compatible = "socionext,ph1-sld8-mioctrl";
+	clock-names = "stdmac", "ehci";
+	clocks = <&sysctrl 10>, <&sysctrl 18>;
+};
+
 &peri {
 	compatible = "socionext,ph1-sld8-perictrl";
 	clock-names = "uart", "i2c";