ARM: imx: guf-neso: only try to enable USB if USB_ULPI is configured
Avoids a build failure if the config does not include ULPI support.
This is similar to what has been done to the PCA100 board.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>