[202412] Fix test_acl.py [ipv6-ingress-uplink->downlink-*] cases for v6 topo#942

r12f merged 2 commits intoAzure:202412Azure/sonic-mgmt.msft:202412from

markx-arista:fix-acl-ingress-uplink-to-downlink-v6-topomarkx-arista/sonic-mgmt.msft:fix-acl-ingress-uplink-to-downlink-v6-topoCopy head branch name to clipboard