arm64: allwinner: h6: add PRCM CCU device node

Allwinner H6 has also a PRCM CCU.

Add its device node into the device tree.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.io>
Signed-off-by: NMaxime Ripard <maxime.ripard@bootlin.com>

arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi

@@ -173,5 +173,15 @@
 			resets = <&ccu RST_BUS_UART3>;
 			status = "disabled";
 		};
+
+		r_ccu: clock@7010000 {
+			compatible = "allwinner,sun50i-h6-r-ccu";
+			reg = <0x07010000 0x400>;
+			clocks = <&osc24M>, <&osc32k>, <&iosc>,
+				 <&ccu CLK_PLL_PERIPH0>;
+			clock-names = "hosc", "losc", "iosc", "pll-periph";
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+		};
 	};
 };