This patch allows the gadget portion of the DWC2 driver to get built when
(!USB && USB_GADGET) condition is encountered.
Acked-by: NPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: NDinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>