[voq][chassis] Use system port name for BUFFER_QUEUE_TABLE in a voq chassis.

[sanmalho-git]

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

Approach

What is the motivation for this PR?

PR# 14173 (sonic-net/sonic-buildimage#14173) updates to set buffer_queue_config on system ports on a VoQ chassis.

This broke the QoS tests in _getBufferProfile for BUFFER_QUEUE_TABLE

How did you do it?

Fix was to use system port name (derived from hostname and asic instance) when dealing with voq chassis and BUFFER_QUEUE_TABLE

How did you verify/test it?

Ran QoS tests against latest 202205 based image

Any platform specific information?

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

Documentation

[mssonicbld]

The pre-commit check detected issues in the files touched by this pull request.
The detected issues may be old or new. For new issues, please try to fix them.

For old issues, it is not mandatory to fix them because they were not caused by this change. It is unfair to blame
author of this pull request. But if you can take extra effort to fix the old issues as well, that would be great!

Detailed pre-commit check results:
trim trailing whitespace.................................................Passed
fix end of files.........................................................Passed
check yaml...........................................(no files to check)Skipped
check for added large files..............................................Passed
check python ast.........................................................Passed
flake8...................................................................Failed
- hook id: flake8
- exit code: 1

tests/qos/qos_sai_base.py:22:1: F401 'tests.common.system_utils.docker' imported but unused
tests/qos/qos_sai_base.py:87:121: E501 line too long (127 > 120 characters)
tests/qos/qos_sai_base.py:234:21: E251 unexpected spaces around keyword / parameter equals
tests/qos/qos_sai_base.py:234:23: E251 unexpected spaces around keyword / parameter equals
tests/qos/qos_sai_base.py:632:79: E202 whitespace before '}'
tests/qos/qos_sai_base.py:641:82: E202 whitespace before '}'
tests/qos/qos_sai_base.py:775:85: F811 redefinition of unused 'get_mux_status' from line 15
tests/qos/qos_sai_base.py:795:39: F811 redefinition of unused 'docker' from line 22
tests/qos/qos_sai_base.py:947:9: E722 do not use bare 'except'
tests/qos/qos_sai_base.py:958:121: E501 line too long (121 > 120 characters)
tests/qos/qos_sai_base.py:959:121: E501 line too long (127 > 120 characters)
...
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