RFR: 8367326: Refactor PEM API tests requiring PEMRecord usage [v2]

[Mikhail Yankelevich]

> Changed to use PEM API: 
> * test/jdk/sun/security/validator/PKIXValAndRevCheckTests.java
> * test/jdk/sun/security/rsa/pss/PSSKeyCompatibility.java
> * test/jdk/sun/security/pkcs11/rsa/TestKeyFactory.java

Mikhail Yankelevich has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - minor import change
 - rolled back TestKeyFactory and simplified PSSKeyCompatability
 - Merge branch 'master' into JDK-8367326
 - JDK-836732: Refactor PEM API tests requiring PEMRecord usage

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/28356/files
  - new: https://git.openjdk.org/jdk/pull/28356/files/08e0fdb2..254aa755

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28356&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28356&range=00-01

  Stats: 163080 lines in 4551 files changed: 97394 ins; 36491 del; 29195 mod
  Patch: https://git.openjdk.org/jdk/pull/28356.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28356/head:pull/28356

PR: https://git.openjdk.org/jdk/pull/28356