ARM: dts: imx6ul: Add ADC support

Add support for ADC1.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul.dtsi

@@ -625,6 +625,18 @@
 				status = "disabled";
 			};
 
+			adc1: adc@02198000 {
+				compatible = "fsl,imx6ul-adc", "fsl,vf610-adc";
+				reg = <0x02198000 0x4000>;
+				interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX6UL_CLK_ADC1>;
+				num-channels = <2>;
+				clock-names = "adc";
+				fsl,adck-max-frequency = <30000000>, <40000000>,
+							 <20000000>;
+				status = "disabled";
+			};
+
 			i2c1: i2c@021a0000 {
 				#address-cells = <1>;
 				#size-cells = <0>;