[sdn_tests]: Adding Ethernet Counter Ipv6-Discards Check test to pins_ondatra.

[divyagayathri-hcl]

Description of PR

• [sdn_tests]: Adding Ethernet Counter Ipv6-Discards Check test to pins_ondatra.

Summary:

• Added Ethernet Counter Ipv6-Discards Check test to pins_ondatra.

Build Results:

INFO: From Generating Descriptor Set proto_library @com_github_openconfig_gnsi//credentialz:credentialz_proto:
github.com/openconfig/gnsi/credentialz/credentialz.proto:21:1: warning: Import github.com/openconfig/gnsi/version/version.proto is unused.
INFO: From Generating Descriptor Set proto_library @com_github_openconfig_gnsi//pathz:pathz_proto:
github.com/openconfig/gnsi/pathz/authorization.proto:43:1: warning: Import github.com/openconfig/gnsi/version/version.proto is unused.
github.com/openconfig/gnsi/pathz/pathz.proto:25:1: warning: Import github.com/openconfig/gnsi/version/version.proto is unused.
INFO: Elapsed time: 319.016s, Critical Path: 124.45s
INFO: 975 processes: 251 internal, 724 linux-sandbox.
INFO: Build completed successfully, 975 total actions

Fixes # (issue)

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• [-] Test case(new/improvement)

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405

Approach

What is the motivation for this PR?

How did you do it?

How did you verify/test it?

Any platform specific information?

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

Documentation

• HLD - SDN Test framework for SONiC - SDN Test framework for SONiC #11771

[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.................................................Failed
- hook id: trailing-whitespace
- exit code: 1
- files were modified by this hook

Fixing sdn_tests/pins_ondatra/tests/ethcounter_sw_single_switch_test.go

fix end of files.........................................................Failed
- hook id: end-of-file-fixer
- exit code: 1
- files were modified by this hook

Fixing sdn_tests/pins_ondatra/tests/ethcounter_sw_single_switch_test.go

check yaml...........................................(no files to check)Skipped
check for added large files..............................................Passed
check python ast.....................................(no files to check)Skipped
flake8...............................................(no files to check)Skipped
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>