Fix compile error caused by review 4138

There is no procedure called ast_closeframe, fix code to use
ast_closestream.

Reported By: Matt Jordan
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Merged revisions 427087 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 427088 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/13@427089 f38db490-d61c-443f-a65b-d21fe96a405b