RFR: 8310351: Typo in ImmutableCollections

[Korov]

Fix the @param name

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Commit messages:
 - 8310351: Typo in ImmutableCollections

Changes: https://git.openjdk.org/jdk/pull/17996/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17996&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8310351
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/17996.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17996/head:pull/17996

PR: https://git.openjdk.org/jdk/pull/17996