RFR: 8337217: Port VirtualMemoryTracker to use VMATree [v31]

[Afshin Zafari]

On Wed, 26 Feb 2025 10:51:11 GMT, Johan Sjölen <jsjolen at openjdk.org> wrote:

> How would I go about verifying the performance gain? You mentioned previously that you wrote a microbenchmark for testing this?

There is no performance check for this PR. This PR just use the new VMATree instead of SortedLinkedList for managing the regions. 
Performance checks and comparisons are left for other future PRs.

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PR Comment: https://git.openjdk.org/jdk/pull/20425#issuecomment-2687364436