usb: cdns3: Fix use after free in probe error handling

We can't use "wrap" after it has been freed.

Fixes: 7733f6c3

 ("usb: cdns3: Add Cadence USB3 DRD Driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190904100102.GB7007@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>