tegra: fdt: Add NAND definitions to fdt

Add a flash node to handle the NAND, including memory timings and
page / block size information.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

board/nvidia/dts/tegra20-seaboard.dts

@@ -153,4 +153,14 @@
 			0x1f04008a>;
 		linux,fn-keymap = <0x05040002>;
 	};
+
+	nand-controller@70008000 {
+		nvidia,wp-gpios = <&gpio 59 0>;		/* PH3 */
+		nvidia,width = <8>;
+		nvidia,timing = <26 100 20 80 20 10 12 10 70>;
+		nand@0 {
+			reg = <0>;
+			compatible = "hynix,hy27uf4g2b", "nand-flash";
+		};
+	};
 };