qlcnic: Fix error code in probe

Return -EINVAL if we can't find the correct device.  Currently it
returns success.

Fixes: 13159183 ("qlcnic: 83xx base driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/X9nHbMqEyI/xPfGd@mwanda


Signed-off-by: Jakub Kicinski <kuba@kernel.org>