Fix macvlan private mode argument vaildation
Fix macvlan private mode argument vaildation

Signed-off-by: Rony Weng <a9a0be65368e4e273dd57745a52576218686f483@synology.com>

kolyshkin/libnetwork,mbanikazemi/libnetwork,docker/libnetwork,ityangchen/libnetwork,mYmNeo/libnetwork,tmakita/libnetwork,docker/libnetwork,curtiszimmerman/libnetwork,WeiZhang555/libnetwork,mahak/libnetwork,mYmNeo/libnetwork,curtiszimmerman/libnetwork,sainath14/libnetwork,vdemeester/libnetwork,mahak/libnetwork,medallia/libnetwork,msabansal/libnetwork,abhi/libnetwork,medallia/libnetwork,tmakita/libnetwork,allencloud/libnetwork,abhi/libnetwork,sainath14/libnetwork,medallia/libnetwork,WeiZhang555/libnetwork,allencloud/libnetwork,docker/libnetwork,vdemeester/libnetwork,abhi/libnetwork,ityangchen/libnetwork,kolyshkin/libnetwork,kolyshkin/libnetwork,fcrisciani/libnetwork,msabansal/libnetwork,vdemeester/libnetwork,mahak/libnetwork,fcrisciani/libnetwork,mbanikazemi/libnetwork