RFR: 8274070: Rectify problemlist platform for failing test on macos12

[Prasanta Sadhukhan]

It was mentioned in JDK-8273618

> java/awt/FullScreen/DisplayChangeVITest/DisplayChangeVITest.java is timing out on a macOS 12 aarch64 (an Apple Silicon Mac Mini) system.
> I'm not seeing the same on x64.

but it is problemlisted for macos-all..It should be problemlisted only for macos-aarch64. 
Mach5 jobs (listed in JBS) also shows this test pass for macos-x64 but fails for macos-aarch64

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Commit messages:
 - 8274070: Rectify problemlist platform for failing test on macos12

Changes: https://git.openjdk.java.net/jdk/pull/5608/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5608&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274070
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5608.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5608/head:pull/5608

PR: https://git.openjdk.java.net/jdk/pull/5608