RFR: 8329637: Apparent typo in java.security file property jdk.tls.keyLimits

[Bradford Wetmore]

Fix a minor typo in the `java.security` file that got missed during the original TLSv1.3 work.

No test needed, comments only.

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Commit messages:
 - 8329637: Apparent typo in java.security file property jdk.tls.keyLimits

Changes: https://git.openjdk.org/jdk/pull/18613/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18613&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329637
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18613.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18613/head:pull/18613

PR: https://git.openjdk.org/jdk/pull/18613