RFR: 8374316: Update copyright year to 2025 for hotspot in files where it was missed

[Kim Barrett]

On Wed, 24 Dec 2025 00:16:59 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> The copyright year in hotspot files updated in 2025 has been bumped to 2025. (to minimize... the patch...for now, all files modified by the commits in src/hotspot have been updated only.)

There are a lot of non-hotspot files in this PR.

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PR Comment: https://git.openjdk.org/jdk/pull/28970#issuecomment-3688645543