When a reload is issued, always process the configuration for dundi.conf.

The reason is that a reload can be used to refresh DNS lookups for defined peers.
Even if the config file hasn't changed, we want to process it for that purpose.

(closes issue #13776)
Reported by: kombjuder


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@164272 65c4cc65-6c06-0410-ace0-fbb531ad65f3