RFR: 8321063: AArch64: Zero build fails after JDK-8320368

[Aleksey Shipilev]

On Thu, 30 Nov 2023 09:15:40 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Simple: we need a definition for Zero, because we cannot reach the AArch64-specific one in `src/cpu/aarch64`.
> 
> Additional testing:
>  - [x] MacOS AArch64 Zero build now passes
>  - [x] Extensive build matrix of Zero and Server builds

Extensive matrix of Zero/Server builds passes for me locally. I am integrating now under triviality rule.

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PR Comment: https://git.openjdk.org/jdk/pull/16897#issuecomment-1833520155