ARM: dts: imx51: Add sahara crypto support

The sahara crypto block on i.MX51 has the same IP version as
the one on i.MX53.

Add support for it.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx51.dtsi

@@ -609,6 +609,15 @@ vpu@83ff4000 {
 				resets = <&src 1>;
 				iram = <&iram>;
 			};
+
+			sahara: crypto@83ff8000 {
+				compatible = "fsl,imx53-sahara", "fsl,imx51-sahara";
+				reg = <0x83ff8000 0x4000>;
+				interrupts = <19 20>;
+				clocks = <&clks IMX5_CLK_SAHARA_IPG_GATE>,
+					 <&clks IMX5_CLK_SAHARA_IPG_GATE>;
+				clock-names = "ipg", "ahb";
+			};
 		};
 	};
 };