RFR: 8248238: Implementation of JEP: Windows AArch64 Support [v12]

[Ludovic Henry]

Hi David,

> The JEP is not yet targeted so we have to wait for that formality. But once that happens I can sponsor for you.

Perfect, I didn't know about the need for the JEP to be targeted before the merge.

> Also note that the PR references the wrong JEP so can you please edit the description to fix that.

I'll work with @Monica to update the PR's description to point to https://openjdk.java.net/jeps/391 instead.

Thank you!
Ludovic