Fix incorrect kernel mappings in Cadence HiFi functions.yaml

[michaelmaitland]

Summary:
Fixed two bugs in fbcode/executorch/backends/cadence/aot/functions_hifi.yaml:

1. cadence::quantize_per_tensor_asym16u was incorrectly mapped to impl::HiFi::quantize_per_tensor_asym16s_out instead of asym16u_out
2. cadence::dequantize_per_tensor_asym32s was incorrectly mapped to impl::HiFi::dequantize_per_tensor_asym16s_out instead of asym32s_out

The second bug caused runtime failures when dequantizing 32-bit signed integer tensors, as the wrong function expecting 16-bit integers was called, resulting in "Unhandled input dtype" assertion failures.

Differential Revision: D84865463

[pytorch-bot]

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❌ 4 New Failures, 3 Cancelled Jobs, 3 Unrelated Failures

As of commit be6e26c with merge base 98baab7 ():

NEW FAILURES - The following jobs have failed:

• pull / test-samsung-models-linux / linux-job (gh)
  RuntimeError: Command docker exec -t ff6adea791c3df969b688a9d8d77e8a1f40a8fc220f061bf3b5e1d566f4f520f /exec failed with exit code 1
• pull / unittest-arm-backend-with-no-fvp (test_pytest_models) / linux-job (gh)
  RuntimeError: Command docker exec -t 60cd9aaf3232968b6851b21cd1cf9edbcbda2e0c297f897ea25912265d66450c /exec failed with exit code 1
• pull / unittest-nxp-neutron / linux-job (gh)
  RuntimeError: Command docker exec -t 7e2a5b70fc369e15bf854d95ca81f243f82fff1313629be3df8fd1b39394c60e /exec failed with exit code 1
• Test CUDA Builds / export-voxtral-cuda-artifact / linux-job (gh)
  RuntimeError: Command docker exec -t 8b2532d5cb1c21768b80a49d51e584f2533139e52ef9ce9c1836a5fa21829797 /exec failed with exit code 2

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• pull / test-binary-size-linux-gcc / linux-job (gh)
• pull / test-openvino-linux / linux-job (gh)
• pull / test-setup-linux-gcc / linux-job (gh)

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / android / run-emulator (gh) (trunk failure)
  The process '/usr/bin/sh' failed with exit code 255
• pull / unittest / linux / linux-job (gh) (trunk failure)
• pull / unittest-editable / linux / linux-job (gh) (trunk failure)

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[meta-codesync]

@michaelmaitland has exported this pull request. If you are a Meta employee, you can view the originating Diff in D84865463.