RFR: 8353066: Properly detect Windows/aarch64 as build platform

[Saint Wesonga]

On Wed, 2 Apr 2025 23:28:55 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> @swesonga @MBaesken Can you please verify that this works for you too?

This works for me. The build type is native, the C++ compiler is an ARM64 binary, and the resulting build has ARM64 binaries. Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/24397#issuecomment-2774402381