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

This block provides clock and reset control for peripherals such as
UART, I2C, IC card, etc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-ph1-ld4.dtsi b/arch/arm/dts/uniphier-ph1-ld4.dtsi
index 6bd4b91..5843097 100644
--- a/arch/arm/dts/uniphier-ph1-ld4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-ld4.dtsi
@@ -157,6 +157,12 @@
 	clock-frequency = <36864000>;
 };
 
+&peri {
+	compatible = "socionext,ph1-ld4-perictrl";
+	clock-names = "uart", "i2c";
+	clocks = <&sysctrl 3>, <&sysctrl 4>;
+};
+
 &pinctrl {
 	compatible = "socionext,ph1-ld4-pinctrl", "syscon";
 };