RFR: 8366777: Build fails unknown pseudo-op with old AS on linux-aarch64 [v4]

[SendaoYan]

On Thu, 4 Sep 2025 16:51:18 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

> Please convert this to using `UTIL_ARG_ENABLE` instead of `AC_ARG_ENABLE`. There should be several examples available. Using this macro will make the code easier to understand and promotes unified behavior for all corner cases.

I have updated PR as use `UTIL_ARG_ENABLE` instead of `AC_ARG_ENABLE`.

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PR Comment: https://git.openjdk.org/jdk/pull/27073#issuecomment-3257263566