ARM: dts: qcom: add prng definition to ipq806x

Add missing prng definition for ipq806x SoC

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Link: https://lore.kernel.org/r/20200705142544.GA3389@earth.li
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm/boot/dts/qcom-ipq8064.dtsi

@@ -386,6 +386,13 @@
 			};
 		};
 
+		rng@1a500000 {
+			compatible = "qcom,prng";
+			reg = <0x1a500000 0x200>;
+			clocks = <&gcc PRNG_CLK>;
+			clock-names = "core";
+		};
+
 		sata_phy: sata-phy@1b400000 {
 			compatible = "qcom,ipq806x-sata-phy";
 			reg = <0x1b400000 0x200>;