ARM: dts: i.MX25: Add IRAM node

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index 7f887d6..bb74d95 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -523,6 +523,11 @@
 			};
 		};
 
+		iram: sram@78000000 {
+			compatible = "mmio-sram";
+			reg = <0x78000000 0x20000>;
+		};
+
 		emi@80000000 {
 			compatible = "fsl,emi-bus", "simple-bus";
 			#address-cells = <1>;