Support smartswitch in get_testbed_type and announce_routes

[bingwang-ms]

Description of PR

Summary:
This PR is to support smartswitch in get_testbed_type.
Before this change, the WARNING message shows up in each run.

Type of change

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

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405
• 202411

Approach

What is the motivation for this PR?

This PR is to support smartswitch in get_testbed_type.

How did you do it?

Update the regex in get_testbed_type to include `smartswitch.

How did you verify/test it?

Verified by manually run a test. The warning message doesn't show up any more.

Any platform specific information?

No.

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

Not a new test.

Documentation

[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[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.........................................................Failed
- hook id: check-ast
- exit code: 1

tests/common/testbed.py: failed parsing with CPython 3.10.12:

Traceback (most recent call last):
File "/home/AzDevOps/.cache/pre-commit/repo9dckhwpp/py_env-python3/lib/python3.10/site-packages/pre_commit_hooks/check_ast.py", line 21, in main
ast.parse(f.read(), filename=filename)
File "/usr/lib/python3.10/ast.py", line 50, in parse
return compile(source, filename, mode, flags,
File "tests/common/testbed.py", line 258
<<<<<<< Updated upstream
IndentationError: expected an indented block after function definition on line 257

flake8...................................................................Failed
...
[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]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[prabhataravind]

lgtm

[mssonicbld]

@bingwang-ms PR conflicts with 202405 branch

[mssonicbld]

Cherry-pick PR to 202411: #16561