add prefix list in nsx-t function must allow to add prefix list even if a prefix list with the same network exist (different action)

{
    "action": "permit",
    "display_name": "TEST_ACL_PREFIXES",
    "network": "10.0.0.1/32",
    "nsx_policy_id": nsx_policy_id
}

{"network": "10.0.0.1/32"}