usb: cdns3: fix spelling mistake: "cnfiguration" -> "configuration"

There is a spelling mistake in a dev_dbg message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190903120710.30128-1-colin.king@canonical.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>