Enhance PFC watchdog log analyzer to check debug information on a per-vendor basis

[stephenxs]

Description of PR

Summary:
Enhance PFC watchdog diagnosis information checking.

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?

Recently, more diagnosis information has been introduced when PFC watchdog is triggered for some vendors.
This is to verify whether the diagnosis information is reported in the syslog.

How did you do it?

1. Check diagnosis information in PFC watchdog detection message on a per-vendor basis
2. Move the expected log message pattern to a common file
3. In warm reboot scenario, the PFC watchdog can be reported based on APPL_DB content instead of counters. In this case, no additional information can be provided. So, do not check diagnosis information in this case.
4. Do not check it on the branches that it is not supported, like 202211.

How did you verify/test it?

Run regression test PFC watchdog

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 pre-commit check is a mandatory check, please fix detected issues.

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/pfcwd/files/pfcwd_helper.py:14:43: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:14:59: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:14:80: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:14:103: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:15:36: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:15:57: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:15:83: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:15:101: W605 invalid escape sequence '.'
tests/pfcwd/files/pfcwd_helper.py:15:109: W605 invalid escape sequence '|'
tests/pfcwd/files/pfcwd_helper.py:16:31: W605 invalid escape sequence '.'
tests/pfcwd/files/pfcwd_helper.py:16:39: W605 invalid escape sequence '|'
...
[truncated extra lines, please run pre-commit locally to view full check results]

To run the pre-commit checks locally, you can follow below steps:

1. Ensure that default python is python3. In sonic-mgmt docker container, default python is python2. You can run
   the check by activating the python3 virtual environment in sonic-mgmt docker container or outside of sonic-mgmt
   docker container.
2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder
4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

6. Alternatively, you can check committed files using:

pre-commit run --from-ref <commit_id> --to-ref <commit_id>

[mssonicbld]

The pre-commit check detected issues in the files touched by this pull request.
The pre-commit check is a mandatory check, please fix detected issues.

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/pfcwd/files/pfcwd_helper.py:15:101: W605 invalid escape sequence '.'
tests/pfcwd/files/pfcwd_helper.py:16:31: W605 invalid escape sequence '.'
tests/pfcwd/files/pfcwd_helper.py:20:1: E302 expected 2 blank lines, found 1

flake8...............................................(no files to check)Skipped
check conditional mark sort..........................(no files to check)Skipped

To run the pre-commit checks locally, you can follow below steps:

1. Ensure that default python is python3. In sonic-mgmt docker container, default python is python2. You can run
   the check by activating the python3 virtual environment in sonic-mgmt docker container or outside of sonic-mgmt
   docker container.
2. Ensure that the pre-commit package is installed:

sudo pip install pre-commit

3. Go to repository root folder
4. Install the pre-commit hooks:

pre-commit install

5. Use pre-commit to check staged file:

pre-commit

6. Alternatively, you can check committed files using:

pre-commit run --from-ref <commit_id> --to-ref <commit_id>

[mssonicbld]

Cherry-pick PR to 202305: #10599