ARM: sunxi: dt: Move uart0 to sun4i-a10.dtsi

The UART0 is only available on the Allwinner A10 SoCs, and not on the
A13, so move the uart0 node to sun4i-a10.dtsi.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Emilio López <emilio@elopez.com.ar>
Tested-by: Emilio López <emilio@elopez.com.ar>
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 03d2b53..b605672 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -47,5 +47,15 @@
 				allwinner,pull = <0>;
 			};
 		};
+
+		uart0: serial@01c28000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x01c28000 0x400>;
+			interrupts = <1>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&osc>;
+			status = "disabled";
+		};
 	};
 };