RFR: 8308891: TestCDSVMCrash.java needs @requires vm.cds

[Matias Saavedra Silva]

The recently added CDS test, TestCDSVMCrash.java, was missing the `@requires vm.cds` tag. This patch adds the tag as originally intended. Verified with tier1-5 tests.

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Commit messages:
 - 8308891: TestCDSVMCrash.java needs @requires vm.cds

Changes: https://git.openjdk.org/jdk/pull/14270/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14270&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308891
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/14270.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14270/head:pull/14270

PR: https://git.openjdk.org/jdk/pull/14270