[jdk21u-dev] RFR: 8355558: SJIS.java test is always ignored

[Goetz Lindenmaier]

I backport this for parity with 21.0.10-oracle.

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Commit messages:
 - Backport c0dc31422d6e7435ad7abdb547dedcc50b7fc0c3

Changes: https://git.openjdk.org/jdk21u-dev/pull/2191/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2191&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8355558
  Stats: 13 lines in 1 file changed: 9 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2191.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2191/head:pull/2191

PR: https://git.openjdk.org/jdk21u-dev/pull/2191