Pull up following revision(s) (requested by ozaki-r in ticket #357):
distrib/sets/lists/debug/mi: 1.228
distrib/sets/lists/tests/mi: 1.765-1.766
etc/mtree/NetBSD.dist.tests: 1.149
sys/net/npf/npf_ctl.c: 1.49
tests/net/ipsec/Makefile: 1.10
tests/net/ipsec/algorithms.sh: 1.6
tests/net/ipsec/natt_terminator.c: 1.1
tests/net/ipsec/t_ipsec_natt.sh: 1.1
tests/net/net_common.sh: 1.23-1.24
usr.sbin/npf/npfctl/npfctl.c: 1.54
Handle esp-udp for NAT-T
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Fix npfclt reload on rump kernels
It fails because npfctl cannot get an errno when it calls ioctl to the (rump)
kernel; npfctl (libnpf) expects that an errno is returned via proplib,
however, the rump library of npf doesn't so. It happens because of mishandlings
of complicate npf kernel options.
PR kern/52643
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Fix showing translated port (ntohs-ed twice wrongly)
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Add test cases of NAT-T (transport mode)
A small C program is added to make a special socket (UDP_ENCAP_ESPINUDP)
and keep it to handle UDP-encapsulated ESP packets.
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Add net/ipsec debug lib directory
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Add ./usr/libdata/debug/usr/tests/net/ipsec
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Stop using bpfjit
Because most architectures don't support it and npf still works without it.

(snj)