fix a problem where the frame's data pointer is overwritten by the newly

allocated data buffer before the data can be copied from it.  This is in
the ast_frisolate() function which is rarely used.  (issue #6732, stefankroon)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@25164 65c4cc65-6c06-0410-ace0-fbb531ad65f3