drm/imx: imx-tve: fix the error message

The error message should say "hsync" instead of "vsync" as
we have just checked the "fsl,hsync-pin" property.
Signed-off-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/drm/imx/imx-tve.c

@@ -589,7 +589,7 @@ static int imx_tve_bind(struct device *dev, struct device *master, void *data)
 			return ret;
 		}
 
-		ret |= of_property_read_u32(np, "fsl,vsync-pin",
+		ret = of_property_read_u32(np, "fsl,vsync-pin",
 					   &tve->di_vsync_pin);
 
 		if (ret < 0) {