Merge pull request #1180 from dwalton76/ipv6-static-route-null0

Ipv6 static route null0

diff --cc bgpd/bgp_evpn_vty.c
Simple merge

diff --cc bgpd/bgp_route.c
Simple merge

diff --cc bgpd/rfapi/bgp_rfapi_cfg.c
Simple merge

diff --cc bgpd/rfapi/rfapi_vty.c
Simple merge

diff --cc zebra/zebra_vty.c
Simple merge