Fix is_xcvr_optical check failure for Moby backplane port SFP type

[sdszhang]

Description of PR

Summary:
Fix the following issue:

platform_tests/api/test_sfp.py::TestSfpApi::test_get_rx_los[xxxx]   FAILED     43%

01/09/2025 09:42:17 sfp.sfp_api                              L0018 INFO   | Executing sfp API: "get_rx_los", index: 16, arguments: "[]", result: "[False, False, False, False, False, False, False, False]"
01/09/2025 09:42:17 sfp.sfp_api                              L0018 INFO   | Executing sfp API: "get_transceiver_info", index: 17, arguments: "[]", result: "{'type': 'Backplane Cartridge', 'type_abbrv_name': 'BP', 'hardware_rev': '0.0', 'serial': 'APH1725600050   ', 'cable_length': 1.0, 'manufacturer': 'Amphenol        ', 'model': 'HS33006-001     ', 'vendor_date': '2025-04-30   ', 'vendor_oui': '41-50-48', 'vendor_rev': '03', 'application_advertisement': "{1: {'host_electrical_interface_id': '800G-ETC-CR8', 'module_media_interface_id': 'Undefined', 'media_lane_count': 8, 'host_lane_count': 8, 'host_lane_assignment_options': 1}, 2: {'host_electrical_interface_id': '400GBASE-CR4 (Clause 162)', 'module_media_interface_id': 'Copper cable', 'media_lane_count': 4, 'host_lane_count': 4, 'host_lane_assignment_options': 17}}", 'host_electrical_interface': 'N/A', 'host_lane_count': 8, 'cable_type': 'Length Cable Assembly(m)', 'cmis_rev': '5.1', 'specification_compliance': 'passive_copper_media_interface', 'slot_id': '1', 'host_lane_assignment_option': 1, 'vdm_supported': False}"
01/09/2025 09:42:17 __init__.pytest_runtest_call             L0040 ERROR  | Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/_pytest/python.py", line 1788, in runtest
    self.ihook.pytest_pyfunc_call(pyfuncitem=self)
  File "/usr/local/lib/python3.8/dist-packages/pluggy/_hooks.py", line 513, in __call__
    return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
  File "/usr/local/lib/python3.8/dist-packages/pluggy/_manager.py", line 120, in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
  File "/usr/local/lib/python3.8/dist-packages/pluggy/_callers.py", line 139, in _multicall
    raise exception.with_traceback(exception.__traceback__)
  File "/usr/local/lib/python3.8/dist-packages/pluggy/_callers.py", line 103, in _multicall
    res = hook_impl.function(*args)
  File "/usr/local/lib/python3.8/dist-packages/_pytest/python.py", line 194, in pytest_pyfunc_call
    result = testfunction(**testargs)
  File "/var/src/sonic-mgmt_vms92-t0-7060x6-moby-512-2/tests/platform_tests/api/test_sfp.py", line 595, in test_get_rx_los
    if not self.is_xcvr_optical(info_dict):
  File "/var/src/sonic-mgmt_vms92-t0-7060x6-moby-512-2/tests/platform_tests/api/test_sfp.py", line 296, in is_xcvr_optical
    spec_compliance_dict = ast.literal_eval(xcvr_info_dict["specification_compliance"])
  File "/usr/lib/python3.8/ast.py", line 99, in literal_eval
    return _convert(node_or_string)
  File "/usr/lib/python3.8/ast.py", line 98, in _convert
    return _convert_signed_num(node)
  File "/usr/lib/python3.8/ast.py", line 75, in _convert_signed_num
    return _convert_num(node)
  File "/usr/lib/python3.8/ast.py", line 66, in _convert_num
    _raise_malformed_node(node)
  File "/usr/lib/python3.8/ast.py", line 63, in _raise_malformed_node
    raise ValueError(f'malformed node or string: {node!r}')
ValueError: malformed node or string: <_ast.Name object at 0x7fdab9497ee0>

Moby's backplane port has the following attribute:
'type': 'Backplane Cartridge',
'type_abbrv_name': 'BP',

However, 'BP' is not in the non-optical check list, this PR adds it into the list.

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• New Test case
  • Skipped for non-supported platforms
• Test case improvement

Back port request

• 202205
• 202305
• 202311
• 202405
• 202411
• 202505

Approach

What is the motivation for this PR?

Fix optical checking API to include the new backplane port used in Moby.

How did you do it?

Add Moby BP port type into the list.

How did you verify/test it?

Local testbed.

Any platform specific information?

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

Documentation

[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[sdszhang]

Test result:

platform_tests/api/test_sfp.py::TestSfpApi::test_get_reset_status[str5-7060x6-moby-512-3] PASSED [ 39%]
platform_tests/api/test_sfp.py::TestSfpApi::test_get_rx_los[str5-7060x6-moby-512-3] PASSED [ 43%]
platform_tests/api/test_sfp.py::TestSfpApi::test_get_tx_fault[str5-7060x6-moby-512-3] PASSED [ 47%]
platform_tests/api/test_sfp.py::TestSfpApi::test_get_temperature[str5-7060x6-moby-512-3] PASSED [ 52%]
platform_tests/api/test_sfp.py::TestSfpApi::test_get_voltage[str5-7060x6-moby-512-3] PASSED [ 56%]

There are still some keyError failures with this fix, which will be addressed as a separate issue.

[sdszhang]

@prgeor can you help to review this one?

[mssonicbld]

Cherry-pick PR to 202505: #20518