[riscv-port-jdk11u:riscv-port] Integrated: 8283929: GHA: Add RISC-V build config

[Gui Cao]

On Wed, 21 Feb 2024 13:27:14 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Backport [JDK-8283929](https://bugs.openjdk.org/browse/JDK-8283929), [JDK-8313701](https://bugs.openjdk.org/browse/JDK-8313701)  and [JDK-8285630](https://bugs.openjdk.org/browse/JDK-8285630) to enable GHA cross-compiling for linux-riscv64 on riscv-port-jdk11u repo.

This pull request has now been integrated.

Changeset: ce3a6673
Author:    Gui Cao <gcao at openjdk.org>
Committer: Fei Yang <fyang at openjdk.org>
URL:       https://git.openjdk.org/riscv-port-jdk11u/commit/ce3a66738152cc2a2e4f342b45268fc971777c1c
Stats:     14 lines in 2 files changed: 13 ins; 0 del; 1 mod

8283929: GHA: Add RISC-V build config
8313701: GHA: RISC-V should use the official repository for bootstrap
8285630: Fix a configure error in RISC-V cross build

Reviewed-by: fyang, luhenry
Backport-of: 85d4b49151e9529051f1ed344749a487d3e92165

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PR: https://git.openjdk.org/riscv-port-jdk11u/pull/6