Merge pull request #4877 from mjstapp/dplane_neighs

zebra: move evpn neighbors to dataplane

diff --cc lib/prefix.c
Simple merge

diff --cc zebra/rt_netlink.c
Simple merge

diff --cc zebra/rt_socket.c
Simple merge

diff --cc zebra/zebra_dplane.c
Simple merge

diff --cc zebra/zebra_rib.c
Simple merge