We do not store cidr packed with no match, so there is no
need to make nomatch bitfield.

This simplifies mtype_data_reset_flags() a bit.
Signed-off-by: Sergey Popovich <popovich_sergei@mail.ua>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>