riscv: dts: allwinner: d1: Add GPADC node

This patch adds declaration of the general purpose ADC for D1
and T113s SoCs.
Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230619154252.3951913-5-bigunclemax@gmail.comSigned-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi

@@ -144,6 +144,16 @@ ccu: clock-controller@2001000 {
 			#reset-cells = <1>;
 		};
 
+		gpadc: adc@2009000 {
+			compatible = "allwinner,sun20i-d1-gpadc";
+			reg = <0x2009000 0x400>;
+			clocks = <&ccu CLK_BUS_GPADC>;
+			resets = <&ccu RST_BUS_GPADC>;
+			interrupts = <SOC_PERIPHERAL_IRQ(57) IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+			#io-channel-cells = <1>;
+		};
+
 		dmic: dmic@2031000 {
 			compatible = "allwinner,sun20i-d1-dmic",
 				     "allwinner,sun50i-h6-dmic";