defaults.h must be listed as a dependency after the cleantest because if it

forces a make clean, it has to be regenerated.  This fixes the problem that
people have been seeing where the build would fail complaining about defaults.h
not being present.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@28894 65c4cc65-6c06-0410-ace0-fbb531ad65f3