RFR: 8268916: Tests for AffirmTrust roots

[Rajan Halade]

Test is updated to include interoperability testing for 4 AffirmTrust root CAs.

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Commit messages:
 - 8268916: Tests for AffirmTrust roots

Changes: https://git.openjdk.org/jdk/pull/16190/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16190&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8268916
  Stats: 54 lines in 1 file changed: 54 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/16190.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16190/head:pull/16190

PR: https://git.openjdk.org/jdk/pull/16190