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Fix qdmlal instructions #1194

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Fix qdmlal instructions #1194

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Commits on Aug 20, 2024

  1. Fix qdmlal instructions 

    qdmlal instructions were implemented without saturation.
This has been fixed by utilising existing SIMDe saturating mult and add instructions.
Unit tests have been updated to test for all possible saturation cases.

- Fix qdmlal, qdmlal_n, qdmlal_lane,  qdmlal_high, qdmlal_high_n and qdmlal_high_lane
- Update unit tests for qdmlal, qdmlal_n, qdmlal_lane, qdmlal_high, qdmlal_high_n, qdmala_high_lane

Change-Id: I8d0d8cfba3f8d5203f2028efbe74b00c51485c61
    @Ryo-not-rio @mr-c
    Ryo-not-rio authored and mr-c committed Aug 20, 2024
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