[qos] support t0-120 qos sai test

[XuChen-MSFT]

Description of PR

Summary:
Fixes # (issue)

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 201911
• 202012
• 202205
• 202305

Approach

What is the motivation for this PR?

[Nvidia] Fix qos sai test for supporting LAG port #9587 #10121
break the qos sai test for mlnx device when topo is t0-120

RCA:
complain keyError when accessing testPortIds.

    def __buildTestPorts(self, request, testPortIds, testPortIps, src_port_ids, dst_port_ids, get_src_dst_asic_and_duts):                                                        """                                                                                                                                                              
            Build map of test ports index and IPs                                                                                                                                                                                                                                                                                                 
            Args:                                                                                                                                                        
                request (Fixture): pytest request object                                                                                                                 
                testPortIds (list): List of QoS SAI test port IDs                                                                                                        
                testPortIps (list): List of QoS SAI test port IPs                                                                                                        
                                                                                                                                                                         
            Returns:                                                                                                                                                     
                testPorts (dict): Map of test ports index and IPs                                                                                                        
        """                                                                                                                                                              
        dstPorts = request.config.getoption("--qos_dst_ports")                                                                                                           
        srcPorts = request.config.getoption("--qos_src_ports")                                                                                                           
                                                                                                                                                                         
>       src_dut_port_ids = testPortIds[get_src_dst_asic_and_duts['src_dut_index']]                                                                                       
E       KeyError: 0                   

checed on PDB, "t0-120" topo is not in the self.SUPPORTED_T0_TOPOS:

(Pdb) p get_src_dst_asic_and_duts['src_dut_index']
0
(Pdb) p testPortIds
{}
(Pdb) p tbinfo["topo"]["name"]
't0-120'
(Pdb) p self.SUPPORTED_T0_TOPOS
['t0', 't0-56-po2vlan', 't0-64', 't0-116', 't0-35', 'dualtor-56', 'dualtor-120', 'dualtor', 't0-80', 't0-backend']
(Pdb) p self.SUPPORTED_PTF_TOPOS
['ptf32', 'ptf64']

How did you do it?

add "t0-120" to self.SUPPORTED_T0_TOPOS

How did you verify/test it?

pass local test, not encounter keyError again.

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

[bingwang-ms]

MS ADO: 25354034
@wangxin @StormLiangMS Can you please help cherry-pick this change to 202205 and 202305 branch? Thanks!

[mssonicbld]

Cherry-pick PR to 202205: #10367

[mssonicbld]

Cherry-pick PR to 202305: #10368