RFR: 8366660: Sort share/nmt includes

[Albert Mingkun Yang]

On Tue, 2 Sep 2025 08:55:30 GMT, Francesco Andreuzzi <duke at openjdk.org> wrote:

> Sort include statements in `hotspot/share/nmt` using `SortIncludes.java`. I'm also removing a couple unnecessary includes.
> 
> Passes `tier1`.

Marked as reviewed by ayang (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/27042#pullrequestreview-3175812928