OS-3812 lxbrand nfs mounting fails

*** 19,28 ****
--- 19,29 ----
  # CDDL HEADER END
  #
  #
  # Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
  # Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
+ # Copyright 2015 Joyent, Inc.
  #
  
  #
  # MAPFILE HEADER START
  #
*** 465,474 ****
--- 466,476 ----
  # There really should be only one SUNWprivate version.
  # Don't add any more.  Add new private symbols to SUNWprivate_1.5
  
  SYMBOL_VERSION SUNWprivate_1.5 {
      global:
+         _nsl_brand_set_hooks;
          clnt_create_service_timed;
          inet_matchaddr;
  } SUNWprivate_1.4;
  
  SYMBOL_VERSION SUNWprivate_1.4 {