ipq806x: enable hw pseudo random number generator

Enables support for pseudo random number generator in device tree.

Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>

target/linux/ipq806x/patches-4.4/316-dt-add-prng-support.patch

@@ -0,0 +1,16 @@
+--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
++++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
+@@ -336,6 +336,13 @@
+ 			};
+ 		};
+ 
++		rng@1a500000 {
++			compatible = "qcom,prng";
++			reg = <0x1a500000 0x200>;
++			clocks = <&gcc PRNG_CLK>;
++			clock-names = "core";
++		};
++
+ 		qcom_pinmux: pinmux@800000 {
+ 			compatible = "qcom,ipq8064-pinctrl";
+ 			reg = <0x800000 0x4000>;

target/linux/ipq806x/patches-4.4/708-ARM-dts-qcom-add-gmac-nodes-to-ipq806x-platforms.patch

@@ -121,7 +121,7 @@ Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
  };
 --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
 +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
-@@ -910,6 +910,92 @@
+@@ -917,6 +917,92 @@
  
  			status = "disabled";
  		};