Update BMC USB NIC searching algorithm for IPv4 only. Signed-off-by: Abner Chang <abner.chang@amd.com> Co-authored-by: Mike Maslenkin <mike.maslenkin@gmail.com> Cc: Nickle Wang <nicklew@nvidia.com> Cc: Igor Kulchytskyy <igork@ami.com> Cc: Mike Maslenkin <mike.maslenkin@gmail.com> Reviewed-by: Igor Kulchytskyy <igork@ami.com> Reviewed-by: Nickle Wang <nicklew@nvidia.com> Acked-by: Mike Maslenkin <mike.maslenkin@gmail.com>