RFR: 8349849: PKCS11 SunTlsKeyMaterial crashes when used with TLS1.2 TlsKeyMaterialParameterSpec

[Daniel Jeliński]

Please review this trivial fix that ensures that the mechanism always matches the parameter class type.

I added a new test case that crashes without the fix, passes with the fix. Existing tier1-3 test cases continue to pass.

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Commit messages:
 - Fix P11TlsKeyMaterialGenerator crash

Changes: https://git.openjdk.org/jdk/pull/23583/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23583&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349849
  Stats: 90 lines in 2 files changed: 89 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/23583.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23583/head:pull/23583

PR: https://git.openjdk.org/jdk/pull/23583