rix-rs2/ipv4: show protocols all Avantel

Avantel BGP --- start 2021-08-04 Passive Received: Peer de-configured

Description:    Avantel/51178/AS-AVANTEL-SPB
  BGP state:          Passive
    Neighbor address: 193.27.39.79
    Neighbor AS:      51178
    Local AS:         49634
    Last error:       Received: Peer de-configured
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   500
      Action:       disable