ARM: dts: Karo TX25: use hardware ecc

We should use hardware ecc on i.MX. While at it, add the optional
nand-bus-width property.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NLothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

arch/arm/boot/dts/imx25-karo-tx25.dts

@@ -107,5 +107,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_nfc>;
 	nand-on-flash-bbt;
+	nand-ecc-mode = "hw";
+	nand-bus-width = <8>;
 	status = "okay";
 };