[jdk21u] RFR: 8315578: PPC builds are broken after JDK-8304913

[Aleksey Shipilev]

On Thu, 21 Sep 2023 12:23:26 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to unbreak another build configuration.
> 
> Additional testing:
>  - [x] macosx-aarch64-server-fastdebug, `jdk/internal/util/ArchTest.java`

Push approval granted.

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PR Comment: https://git.openjdk.org/jdk21u/pull/186#issuecomment-1731597052