[202205]Cherry-pick: Add support for t0-56-po2vlan topo to qos sai test(#7703)#10131

wangxin merged 1 commit intosonic-net:202205sonic-net/sonic-mgmt:202205from

congh-nvidia:qos_sai_t056po2vlan_202205congh-nvidia/sonic-mgmt:qos_sai_t056po2vlan_202205Copy head branch name to clipboard