[jdk21] RFR: 8301379: Verify TLS_ECDH_* cipher suites cannot be negotiated

[Rajan Halade]

This test update should be included in JDK 21 LTS release.

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Commit messages:
 - Backport 9f64a64376c677dbe1358807329b42737ac78ad9

Changes: https://git.openjdk.org/jdk21/pull/71/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=71&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301379
  Stats: 311 lines in 2 files changed: 179 ins; 51 del; 81 mod
  Patch: https://git.openjdk.org/jdk21/pull/71.diff
  Fetch: git fetch https://git.openjdk.org/jdk21.git pull/71/head:pull/71

PR: https://git.openjdk.org/jdk21/pull/71