Include urndis(4) in list of devices for which we generate hardware notes.

MFC after:	3 days
Get rid of crshared.
- Move L2 addr configuration for the primary port to a taskqueue.  This fixes
  LOR of softc rmlock in iflladdr_event handlers.

- Call if_delmulti_ifma() after LACP_UNLOCK().  This fixes another LOR.

- Fix a panic in lacp_transit_expire().

- Fix a panic in lagg_input() upon shutting down a port.
Use printb() for boolean flags in ro_opts and actor_state for LACP.
Remove stray uma_mtx lock/unlock in zone_drain_wait()

Callers of zone_drain_wait(M_WAITOK) do not need to hold (and were not)
the uma_mtx, but we would attempt to unlock and relock the mutex if we
had to sleep because the zone was already draining. The M_NOWAIT callers
may hold the uma_mtx, but we do not sleep in that case.

Reviewed by:	jhb
MFC after:	3 days
ipfiler bug #550 filter rule list corrupted with inserted rules

Obtained from:	ipfilter CVS repo (r1.128); NetBSD CVS repo (r1.15)
ipfilter bug #554 Determining why a ipf rule matches is hard -- replace
ipfilter rule compare with new ipf_rule_compare() function.

Obtained from:	ipfilter CVS rep (r1.129)
ipfilter bug #538 ipf_p_dns_del should return void

Obtained from:	ipfilter cvs repo (r1.8)
ipfilter bug #534 destination list hashing not endian neutral

Obtained from:	ipfilter CVS repo (r1.26), NetBSD CVS repo (r1.8)
ipfilter bug #537 NAT rules with sticky have incorrect hostmap IP address.
This fixes when an IP address mapping is put in the hostmap table for
sticky NAT rules, it ends up having the wrong byte order.

Obtained from:	ipfilter CVS repo (r1.102), NetBSD CVS repo (r1.12)
Merge remote-tracking branch 'freebsd/master' into hardened/current/master
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/hardening
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/segvguard
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/log
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/userlandenhanced
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/unstable
Merge remote-tracking branch 'origin/hardened/current/hardening' into hardened/current/unstable
Merge remote-tracking branch 'origin/hardened/current/segvguard' into hardened/current/unstable
Merge remote-tracking branch 'origin/hardened/current/ptrace' into hardened/current/unstable