Remove superfluous declaration of rtnl_route_put()

rtnl_route_put() is declared twice in the same header file

Signed-off-by: Tony Cheneau <tony.cheneau@amnesiak.org>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Remove rtnl_link_free() declaration from the header file.

Reason: there is no rtnl_link_free() definition anywhere in the code.

Signed-off-by: Tony Cheneau <tony.cheneau@amnesiak.org>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
nl-route-add: Add NLM_F_EXCL flag to route add

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>