[Bugfix] Correct import error on TPU accelerator

[wdhongtw]

PR #23991 use another attribute from triton.language, which cause import error in TPU setup.

Enhance the placeholder for TPU environment.

Purpose

Make TPU accelerator setup working again.

Test Plan

Test locally.

Test Result

Pass.

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
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[gemini-code-assist]

Code Review

This pull request addresses an import error on TPU environments by adding the tensor attribute to the TritonLanguagePlaceholder. This is a necessary fix to support code that uses triton.language.tensor when Triton is not available. The change is correct, minimal, and directly resolves the issue described. I see no issues with this implementation.

[wdhongtw]

Duplicated of #25649 and #25658, closed.