git: openjdk/jdk21u: master: 8315578: PPC builds are broken after JDK-8304913

[Aleksey Shipilev]

Changeset: e2bfc22b
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-09-22 15:17:45 +0000
URL:       https://git.openjdk.org/jdk21u/commit/e2bfc22b64560321e07e11c168a891b406896edf

8315578: PPC builds are broken after JDK-8304913

Backport-of: 9559e035d2692d9d61bec2a13b5239a98db077ac

! src/java.base/share/classes/jdk/internal/util/Architecture.java
! src/java.base/share/classes/jdk/internal/util/PlatformProps.java.template
! test/jdk/jdk/internal/util/ArchTest.java