RFR: 8352044: Add --with-import-jvms to configure

[Aleksey Shipilev]

On Fri, 14 Mar 2025 15:49:44 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> We should allow pre-built JVMs to be included in a build, so they are just copied into place, and the jvm.cfg file properly updated.

For completeness/reference, this is my JDK frankensteining script that is used for producing builds.shipilev.net bundles: [bundle-multi-jdk.sh.txt](https://github.com/user-attachments/files/19283184/bundle-multi-jdk.sh.txt). That would be one of the workflows that new build support feature would need to help.

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PR Comment: https://git.openjdk.org/jdk/pull/24063#issuecomment-2728766491