netfilter: nf_ct_udp[lite]: convert UDP[lite] timeouts to array

Use one array to store the UDP timeouts instead of two variables.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --cc net/netfilter/nf_conntrack_proto_udp.c
Simple merge

diff --cc net/netfilter/nf_conntrack_proto_udplite.c
Simple merge