emac: Add route to Local table

For Talos as part of early Ethernet we have to add support to
add route in local table instead of main table .On Early Ethernet
Network manager is not available on Talos to add route .Since on
Talos main table is used for route so we need local table.

Change-Id: I062d84b007418a2e27bbfb93f7af0c0fcc6fbc82