RFR: 8304915: Create jdk.internal.util.Architecture enum and apply [v9]

[Roger Riggs]

On Tue, 11 Apr 2023 10:39:39 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> This should (probably) be correct:
>> Suggestion:
>> 
>>             case PPC64 -> !OperatingSystem.isAix() && Architecture.isLittleEndian();
>
> Looks correct, but makes the test pointless for any linux on PPC64.

Will change to compare `isLittleEndian` with `!Unsafe.isBigEndian()`.
The runtime must match the build time.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13357#discussion_r1163112421