[riscv-port-jdk17u:riscv-port] RFR: 8294012: RISC-V: get/put_native_u8 missing the case when address&7 is 6

[Vladimir Kempik]

On Thu, 20 Apr 2023 02:41:00 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Please review this backport to riscv-port-jdk17u.
> Backport of [JDK-8294012](https://bugs.openjdk.org/browse/JDK-8294012). Applies cleanly.
> 
> Testing:
> 
> Tier1-3 passed without new failure on unmacthed (release).

Marked as reviewed by vkempik (no project role).

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PR Review: https://git.openjdk.org/riscv-port-jdk17u/pull/46#pullrequestreview-1393529983