8371651: [AArch64] Populate CPU _features flag on Windows

[dhanalla]

Populate the _features flag with available CPU features on Windows aarch64

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8371651: [AArch64] Populate CPU _features flag on Windows (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/28461/head:pull/28461
$ git checkout pull/28461

Update a local copy of the PR:
$ git checkout pull/28461
$ git pull https://git.openjdk.org/jdk.git pull/28461/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 28461

View PR using the GUI difftool:
$ git pr show -t 28461

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/28461.diff

[bridgekeeper]

👋 Welcome back dhanalla! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[dhanalla]

@brianjstafford, can someone from Microsoft take a look at this PR.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

@dhanalla The following label will be automatically applied to this pull request:

• hotspot-runtime

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