Fix *BSD compilation of iax2-provision.c. We should probably move the IPTOS_MINCOST checking stuff over to a header fle that gets included

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3402 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/iax2-provision.c

@@ -34,6 +34,10 @@
 #include "iax2-provision.h"
 #include "iax2-parser.h"
 
+#ifndef IPTOS_MINCOST
+#define IPTOS_MINCOST 0x02
+#endif
+
 static int provinit = 0;
 
 struct iax_template {