ot1200: fix card detect for usdhc4

Today I got the final board and found out that a different
connector is used as the one on my development board. The
new connector has swaped pins for cd and wp.

This change is tested on a production ready board.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>

board/bachmann/ot1200/ot1200.c

@@ -159,8 +159,8 @@ int board_mmc_getcd(struct mmc *mmc)
 		gpio_direction_input(IMX_GPIO_NR(4, 5));
 		ret = gpio_get_value(IMX_GPIO_NR(4, 5));
 	} else {
-		gpio_direction_input(IMX_GPIO_NR(1, 4));
-		ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
+		gpio_direction_input(IMX_GPIO_NR(1, 5));
+		ret = !gpio_get_value(IMX_GPIO_NR(1, 5));
 	}
 
 	return ret;