We have modified the existing APN to support dual stack (IPV4V6) for carrier Tashicell:

  <apn carrier="TashiCell"
      carrier_id = "2165"
      mcc="402"
      mnc="77"
      apn="ticlnet"
      user=""
      password=""
      proxy=""
      port=""
      type="default,supl"
      protocol="IPV4V6"
      roaming_protocol="IPV4V6"
  />

Change-Id: I539e13b4ef33b6f34aef5edb02dd70c6c5c88208