[jdk11u-dev] RFR: 8317373: Add Telia Root CA v2

[Severin Gehwolf]

Please review this backport, which doesn't apply clean due to missing pattern matching for switch in JDK 11 and some minor context differences. I've resolved them manually.

Testing:
- [ ] GHA (still running)
- [x] jtreg tests: `test/jdk/sun/security/lib/cacerts` `test/jdk/security/infra/java/security/cert/CertPathValidator`. The latter includes the new test which passes.

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Commit messages:
 - Backport d3ebb4a155be8ed93e79b6b58c645e861ec30267

Changes: https://git.openjdk.org/jdk11u-dev/pull/2262/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2262&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317373
  Stats: 58 lines in 3 files changed: 55 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2262.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2262/head:pull/2262

PR: https://git.openjdk.org/jdk11u-dev/pull/2262