Allow type=user SIP endpoints to be loaded properly from realtime.

(closes issue #16021)
Reported by: Guggemand
Patches:
      realtime-type-fix.patch uploaded by Guggemand (license 897)
	  (altered by me slightly to avoid ref leaks)
Tested by: Guggemand




git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@265449 65c4cc65-6c06-0410-ace0-fbb531ad65f3