ARM: dts: add node for PL330 MDMA1 controller for exynos4

Add missing PL330 MDMA1 controller node to the device tree (DT).

[ Currently there is no problem with using 'non-secure' mdma1 address
  instead of 'secure' one on revision 0 of Exynos4210 SOC (as used by
  Universal C210 board) as this SOC revision is unsupported by DT. ]

Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index a26c3dd..96d4462 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -244,5 +244,11 @@
 			reg = <0x12690000 0x1000>;
 			interrupts = <0 36 0>;
 		};
+
+		mdma1: mdma@12850000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0x12850000 0x1000>;
+			interrupts = <0 34 0>;
+		};
 	};
 };