8376803: Jtreg test compiler/vectorization/TestVectorAlgorithms.java fails after JDK-8373026

[Sorna-Sarathi]

JDK-8373026 introduced TestVectorAlgorithms. The vectorized hash computations implicitly assumed little-endian lane ordering, causing the test to fail on big-endian platforms.

This fix updates the hash computation to preserve logical byte order across platforms, making the test endianness-independent and ensuring consistent behaviour on both little-endian and big-endian architectures.

JBS Issue: JDK-8376803

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Error

 ⚠️ 8376803 is used in problem lists: [test/hotspot/jtreg/ProblemList.txt]

Issue

• JDK-8376803: Jtreg test compiler/vectorization/TestVectorAlgorithms.java fails after JDK-8373026 (Bug - P4)(⚠️ The fixVersion in this issue is [27] but the fixVersion in .jcheck/conf is 28, a new backport will be created when this pr is integrated.)

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