ARM: dts: imx28: Add compatible and interrupt for LRADC

Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Juergen Beisert <jbe@pengutronix.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28.dtsi

@@ -638,7 +638,10 @@
 			};
 
 			lradc@80050000 {
+				compatible = "fsl,imx28-lradc";
 				reg = <0x80050000 0x2000>;
+				interrupts = <10 14 15 16 17 18 19
+						20 21 22 23 24 25>;
 				status = "disabled";
 			};