kern/123726: [panic] [altq] page fault after ppp restart and pf resync

[vwe at FreeBSD.org]

Old Synopsis: page fault after ppp restart and pf resync
New Synopsis: [panic] [altq] page fault after ppp restart and pf resync

Responsible-Changed-From-To: freebsd-net->freebsd-pf
Responsible-Changed-By: vwe
Responsible-Changed-When: Sun May 18 16:57:03 UTC 2008
Responsible-Changed-Why: 

altq is Max' territory - reassign
also please note, this PR is a slightly different DUP to similar PRs
(problem is caused by altq when interfaces disappear)

http://www.freebsd.org/cgi/query-pr.cgi?pr=123726