RFR: CODETOOLS-7902961: jcstress: Add jcstress-samples to tests-all bundle

[Aleksey Shipilev]

It makes little sense to avoid jcstress samples from tests-all bundle. Adding samples to tests-all bundle also implicitly verifies them during the normal concurrency testing.

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Commit messages:
 - CODETOOLS-7902961: jcstress: Add jcstress-samples to tests-all bundle

Changes: https://git.openjdk.java.net/jcstress/pull/66/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jcstress&pr=66&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902961
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jcstress/pull/66.diff
  Fetch: git fetch https://git.openjdk.java.net/jcstress pull/66/head:pull/66

PR: https://git.openjdk.java.net/jcstress/pull/66