[action] [PR:12084] remove low speed port from test port list for breakout test scenario

[mssonicbld]

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
• 202311

Approach

What is the motivation for this PR?

Regarding to 7050qx's QoS SAI test for topo t0:

test port select result is as below:
testPortIds={0: {0:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24]}};

and 1,2,3 are low speed breakout port. as below:

admin@bjw-can-7050qx-3:~$ show int st
Interface Lanes Speed MTU FEC Alias Vlan Oper Admin Type Asym PFC

---

Ethernet0 9 10G 9100 N/A Ethernet1 routed up down SFP/SFP+/SFP28 off
Ethernet1 10 10G 9100 N/A Ethernet2 trunk up up SFP/SFP+/SFP28 off
Ethernet2 11 10G 9100 N/A Ethernet3 trunk up up SFP/SFP+/SFP28 off
Ethernet3 12 1G 9100 N/A Ethernet4 trunk up up SFP/SFP+/SFP28 off
Ethernet4 13,14,15,16 40G 9100 N/A Ethernet6/1 trunk up up QSFP+ or later with SFF-8636 or SFF-8436 off

it cause two issue:

• caused using wrong test target porfile for qos sai test. as below:

profileName = ingressLosslessProfile["profileName"] >>>>> [Xu]: just get profile of first test port, in this function.
logger.info(
"Lossless Buffer profile selected is {}".format(profileName))

if self.isBufferInApplDb(dut_asic):
profile_pattern = "^BUFFER_PROFILE_TABLE\:pg_lossless_(.)profile$"
else:
profile_pattern = "^BUFFER_PROFILE\|pg_lossless(.)_profile"
m = re.search(profile_pattern, profileName)
pytest_assert(m.group(1), "Cannot find port speed/cable length")

portSpeedCableLength = m.group(1)

portSpeedCableLength = "40000_300m" >>>> [Xu]: according to above sample result of test port selection, first port' id is 1 (it's Etherent1), the corresponding PG lossless porfile is "pg_lossless_10000_300m_profile". so we can never get expected pg_lossless_40000_300m_profile profile.

• cause qos sai test traffic go through low speed breakout port rather than high speed 40G port
  and eventually, caused Xon case failure.

How did you do it?

remove low speed port out of test port list

How did you verify/test it?

pass UT

Any platform specific information?

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

Documentation

[mssonicbld]

Original PR: #12084