After r274205 unbreak NOIP kernels.  vsi is now also used outside
address family specific blocks so move it out from under the condition.

MFC after:	6 days
X-MFC with:	r274205


git-svn-id: svn+ssh://svn.freebsd.org/base/head@274228 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f