resolved: reuse check for link-local IP address lookups

resolved: reuse check for link-local IP address lookups

Let's reuse accept_link_local_reverse_lookups() at one more place, where
we check for the list of link local reverase address domains. Since we
don't actually accept the domains here (but rather the opposite, not
accept), let's rename the function a bit more generically with accept_ →
match_.

While we are at it invert the if branches, to make things more easily
understandable: filter out the unwatnted stuff and have the "all good"
state as main codepath.