Add support SA8797(also used by SA8397)

[ares89]

Summary

Fixes #16535

feat(backends/qualcomm): add support for SA8797/SA8397 chipset and V81 architecture

Test plan

I have tested the changes by compiling and running a model on the SA8397 with QNN SDK v2.42.0.251225
python examples/qualcomm/oss_scripts/llama/llama.py -b build-android -m SA8797 --temperature 0 --model_mode hybrid --max_seq_len 1024 --prefill_ar_len 128 --decoder_model qwen3-0_6b --compile_only --prompt "what is 1+1" --checkpoint /home/xxx/.cache/meta_checkpoints/Qwen_Qwen3-0.6B.pth --artifact ./llama_qnn/qwen3/8797_04

python examples/qualcomm/oss_scripts/llama/llama.py -b build-android -m SA8797 -s localhost:5555 --decoder_model qwen3-0_6b --model_mode hybrid --prefill_ar_len 128 --max_seq_len 1024 --prompt "what is 1+1" --pre_gen_pte D:\\tmp\\llama_qnn_qwen3_06b\\8797_04

[pytorch-bot]

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⏳ No Failures, 21 Pending

As of commit bba3ce5 with merge base 4c8132c ():
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[kirklandsign]

Hello @ares89 do you intend to merge to main or release/1.0?

[ares89]

Hello @ares89 do you intend to merge to main or release/1.0?

I want to merge to main, and I'll test the recent changes

[ares89]

@kirklandsign
I have tested the changes on the main branch, and it is working fine.

[SS-JIA]

cc: @cccclai @shewu-quic @chunit-quic @haowhsu-quic @winskuo-quic since this is a QNN backend related update!

[cccclai]

Thank you! Looks good to me, will wait to see if qcom folks have more feedback

[cccclai]

Hmm somehow the CI is not triggered. Can I get some help to land this PR? @SS-JIA @Gasoonjia @JacobSzwejbka

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[kirklandsign]

Hmm somehow the CI is not triggered. Can I get some help to land this PR? @SS-JIA @Gasoonjia @JacobSzwejbka

Tried update branch and seems working

[cccclai]

@ares89 the lint runner is failing, can you fix the error?

 Lint for backends/qualcomm/serialization/qc_schema.py:

  Warning (UFMT) format
    Run `lintrunner -a` to apply this patch.

    You can run `lintrunner -a` to apply this patch.

    69  69 | 
    70  70 | _soc_info_table = {
    71  71 |     QcomChipset.SA8295: SocInfo(QcomChipset.SA8295, HtpInfo(HtpArch.V68, 8)),
    71     |-    QcomChipset.SA8797: SocInfo(QcomChipset.SA8797, HtpInfo(HtpArch.V81, 16)),
        72 |+    QcomChipset.SA8797: SocInfo(QcomChipset.SA8797, HtpInfo(HtpArch.V81, 16)),
    73  73 |     QcomChipset.SM8350: SocInfo(QcomChipset.SM8350, HtpInfo(HtpArch.V68, 4)),
    74  74 |     QcomChipset.SM8450: SocInfo(QcomChipset.SM8450, HtpInfo(HtpArch.V69, 8)),
    75  75 |     QcomChipset.SM8475: SocInfo(QcomChipset.SM8475, HtpInfo(HtpArch.V69, 8)),

[ares89]

@ares89 the lint runner is failing, can you fix the error?

fixed ^_^