ARM: dts: socfpga: Add Altera Arria10 OCRAM EDAC devicetree entry

Add the device tree entries needed to support the Altera On-Chip
RAM EDAC on the Arria10 chip.
Signed-off-by: NThor Thayer <tthayer@opensource.altera.com>
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>

arch/arm/boot/dts/socfpga_arria10.dtsi

@@ -616,6 +616,11 @@
 				compatible = "altr,socfpga-a10-l2-ecc";
 				reg = <0xffd06010 0x4>;
 			};
+
+			ocram-ecc@ff8c3000 {
+				compatible = "altr,socfpga-a10-ocram-ecc";
+				reg = <0xff8c3000 0x400>;
+			};
 		};
 
 		rst: rstmgr@ffd05000 {