MT#11241 mod_conference: AmPlaylist::close(…) is now replaced by AmPlaylist::flush()

(cherry picked from commit 108e6f5dba)

Change-Id: I78407fb30e6d65c65a5de98a9ef6deae949e5af6

debian/patches/sipwise/0014-dsm-mod_conference-flushMixInList-action-loop-for-mi.patch

@@ -62,7 +62,7 @@ index 236cdd2..0028a14 100644
 +    EXEC_ACTION_STOP;
 +  }
 +  AmPlaylist* l = l_obj->get();
-+  l->close(false);
++  l->flush();
 +  DBG("flushed mixInList\n");
 +} EXEC_ACTION_END;
 diff --git a/apps/dsm/mods/mod_conference/ModConference.h b/apps/dsm/mods/mod_conference/ModConference.h