ARM: dts: DRA7: Add DT node for RNG IP

Adding dt node for hardware random number generator IP.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

@@ -1972,6 +1972,15 @@ sham: sham@53100000 {
 			clocks = <&l3_iclk_div>;
 			clock-names = "fck";
 		};
+
+		rng: rng@48090000 {
+			compatible = "ti,omap4-rng";
+			ti,hwmods = "rng";
+			reg = <0x48090000 0x2000>;
+			interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&l3_iclk_div>;
+			clock-names = "fck";
+		};
 	};
 
 	thermal_zones: thermal-zones {