Initialize lock that wasn't

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1271 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_iax.c

@@ -5101,6 +5101,8 @@ int load_module(void)
 
 	ast_pthread_mutex_init(&iaxq.lock);
 	ast_pthread_mutex_init(&userl.lock);
+	ast_pthread_mutex_init(&peerl.lock);
+	ast_pthread_mutex_init(&dpcache_lock);
 
 	ast_cli_register(&cli_show_users);
 	ast_cli_register(&cli_show_channels);