RISC-V: Do not support subword scatter store

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • 25
    • Affects Version/s: 25
    • Component/s: hotspot
    • b20
    • riscv

      Both subword gather load and scatter store are not supported for riscv vector extension.
      https://bugs.openjdk.org/browse/JDK-8331150 makes this constraint explicit for subword gather load.
      To be safer and more consistent, consider making that explicit for subword scatter store as well.

            Assignee:
            Fei Yang
            Reporter:
            Fei Yang
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