RFR: 8309001: Add Linux/riscv64 support to WebKit [v2]

[Kevin Rushforth]

On Fri, 2 Jun 2023 15:56:23 GMT, Eric Long <duke at openjdk.org> wrote:

>> RISC-V is a new free and open-source ISA that is being widely adopted in the recent years. Currently WebKit is ready for riscv64, and only minor changes is needed to support the platform.
>
> Eric Long has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:
> 
>   8309001: Add Linux/riscv64 support

Marked as reviewed by kcr (Lead).

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PR Review: https://git.openjdk.org/jfx/pull/1146#pullrequestreview-1462963571