ARM: dts: i.MX25: add RNGB node to dtsi

Add a devicetree entry for the Random Number Generator Version B (RNGB).
The driver for RNGC supports version B as well.

Signed-off-by: Steffen Trumtrar <[e-mail]>
Signed-off-by: Martin Kaiser <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx25.dtsi

···
 				interrupt-names = "scm", "smn";
 			};
 
+			rngb: rngb@53fb0000 {
+				compatible = "fsl,imx25-rngb";
+				reg = <0x53fb0000 0x4000>;
+				clocks = <&clks 109>;
+				interrupts = <22>;
+			};
+
 			esdhc1: esdhc@53fb4000 {
 				compatible = "fsl,imx25-esdhc";
 				reg = <0x53fb4000 0x4000>;