RFR: CODETOOLS-7903292: jcstress: Allocation profiling is not available on older JDKs

[Aleksey Shipilev]

[CODETOOLS-7903216](https://bugs.openjdk.org/browse/CODETOOLS-7903216) introduced a regression where allocation profiling was ruled to be unavailable on older JDKs.

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Commit messages:
 - Fix

Changes: https://git.openjdk.org/jcstress/pull/122/files
 Webrev: https://webrevs.openjdk.org/?repo=jcstress&pr=122&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903292
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jcstress/pull/122.diff
  Fetch: git fetch https://git.openjdk.org/jcstress pull/122/head:pull/122

PR: https://git.openjdk.org/jcstress/pull/122