RFR: 8356182: Build fails on aarch64 without ZGC

[Christian Hagedorn]

On Mon, 5 May 2025 13:24:51 GMT, snake66 <duke at openjdk.org> wrote:

> jvmciCodeInstaller_aarch64.cpp references symbols defined by the ZGC unconditionally, causing the build to fail when ZGC is not included.
> 
> This work is sponsored by The FreeBSD FOundation

Looks good to me, too.

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Marked as reviewed by chagedorn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25039#pullrequestreview-2815008769