Don't load module interfaces without a name. We use that name for reference in…

Don't load module interfaces without a name.  We use that name for reference in the hash, it is required.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4372 d0543943-73ff-0310-b7d9-9358b9ac24b2