arm64: dts: qcom: Add RNG device tree node

Adds rng device tree node for msm8916 SoCs.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Andy Gross <agross@codeaurora.org>

arch/arm64/boot/dts/qcom/msm8916.dtsi

@@ -390,6 +390,13 @@ spmi_bus: spmi@200f000 {
 			interrupt-controller;
 			#interrupt-cells = <4>;
 		};
+
+		rng@22000 {
+			compatible = "qcom,prng";
+			reg = <0x00022000 0x200>;
+			clocks = <&gcc GCC_PRNG_AHB_CLK>;
+			clock-names = "core";
+		};
 	};
 };