[jdk21u-dev] RFR: 8293345: SunPKCS11 provider checks on PKCS11 Mechanism are problematic

[Goetz Lindenmaier]

I backport this for parity with 21.0.7-oracle.

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Commit messages:
 - Backport 1b476f52ba85f9ceaabe785d36cb07df831fd0e8

Changes: https://git.openjdk.org/jdk21u-dev/pull/1200/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1200&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293345
  Stats: 51 lines in 2 files changed: 25 ins; 25 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1200.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1200/head:pull/1200

PR: https://git.openjdk.org/jdk21u-dev/pull/1200