RFR: 8357280: (bf) java/nio/Buffer/LimitDirectMemoryNegativeTest.java is not run on aarch64

[Brian Burkhalter]

Add missing `(os.arch == "aarch64")` to the `@requires` tag of the test.

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Commit messages:
 - 8357280: (bf) java/nio/Buffer/LimitDirectMemoryNegativeTest.java is not run on aarch64

Changes: https://git.openjdk.org/jdk/pull/25311/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25311&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357280
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/25311.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25311/head:pull/25311

PR: https://git.openjdk.org/jdk/pull/25311