[portchannel ]Fix bgp_gr_helper/iface_loopback action failure due to config_db change

[nhe-NV]

bgp_gr_* and iface_loopback_action* test failed due to "members" field removed by this PR: sonic-net/sonic-buildimage#13660

Description of PR

Summary: bgp_gr_* and iface_loopback_action* test failed due to "members" field removed by this PR: sonic-net/sonic-buildimage#13660
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?

bgp_gr_* and iface_loopback_action* test failed due to "members" field removed by this PR: sonic-net/sonic-buildimage#13660

How did you do it?

How did you verify/test it?

Run the bgp_gr* test and the iface_loopback_action* cases, and they pass

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/bgp/test_bgp_gr_helper.py:107:5: F841 local variable 'portchannels' is assigned to but never used

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>

[liat-grozovik]

@nhe-NV could you please help to resolve conflicts?

[ZhaohuiS]

@nhe-NV , @wangxin @liat-grozovik I think this PR #7668 should fix the issue you mentioned.
It's a common fix for all related test cases which use member of portchannel.

[nhe-NV]

@nhe-NV , @wangxin @liat-grozovik I think this PR #7668 should fix the issue you mentioned. It's a common fix for all related test cases which use member of portchannel.

Thanks @ZhaohuiS I will close it