Add Support for Route Tag on Primary IP Address for SVIs, Ethernet Ints, and PO Ints

LEAF1(config)# show run int vlan 1001

!Command: show running-config interface Vlan1001
!Running configuration last done at: Wed Jan  7 03:55:14 2026
!Time: Wed Jan  7 04:02:02 2026

version 10.6(1) Bios:version  

interface Vlan1001
  no shutdown
  vrf member GREEN
  ip address 172.16.1.1/24 tag 12345                <<<<<<<<
  fabric forwarding mode anycast-gateway

