[jdk21u-dev] RFR: 8326898: NSK tests should listen on loopback addresses only

[Goetz Lindenmaier]

I backport this for parity with 21.0.6-oracle.

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Commit messages:
 - Backport 2482a505e5c898cc6365aa4fb8ca3e8b758b3a97

Changes: https://git.openjdk.org/jdk21u-dev/pull/968/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=968&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8326898
  Stats: 22 lines in 6 files changed: 2 ins; 0 del; 20 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/968.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/968/head:pull/968

PR: https://git.openjdk.org/jdk21u-dev/pull/968