Add extension_llm_runner to CMake deps (#19749)

[kirklandsign]

Summary:

transducer_runner.cpp includes llm_runner_helper.h and uses
load_tokenizer(), time_in_ms(), and print_report() which are
implemented in extension_llm_runner. Without this link dependency,
builds fail with undefined symbol errors.

Reviewed By: Gasoonjia

Differential Revision: D106162684

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/19749

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❌ 3 New Failures, 3 Pending, 1 Unclassified Failure

As of commit 24eafde with merge base 7d8063f ():

NEW FAILURES - The following jobs have failed:

• Build Presets / apple (pybind) / build (gh)
• MLX / test-mlx-llm (unsloth/Llama-3.2-1B-Instruct, llama-1b, false, nvfp4, macos-14-xlarge) / test-mlx-llm-llama-1b-nvfp4 (gh)
  The process '/opt/homebrew/bin/git' failed with exit code 128
• pull / android / build-android (gh)
  The process '/usr/bin/git' failed with exit code 1

UNCLASSIFIED FAILURE - DrCI could not classify the following job because the workflow did not run on the merge base. The failure may be pre-existing on trunk or introduced by this PR:

• Check Labels / Check labels (gh) (this job did not run on the merge base, so DrCI cannot tell whether the failure is pre-existing)
  RuntimeError: GraphQL query

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[meta-codesync]

@kirklandsign has exported this pull request. If you are a Meta employee, you can view the originating Diff in D106162684.

[ghost]

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[Copilot]

Pull request overview

This PR fixes link-time build failures for the ASR runner extension by adding the missing CMake link dependency on extension_llm_runner, which provides implementations used by transducer_runner.cpp (via llm_runner_helper.h).

Changes:

• Add extension_llm_runner to extension_asr_runner’s runner_deps so the ASR runner links the required LLM runner helper implementations.

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