RFR: 8340200: Misspelled constant `AttributesProcessingOption.DROP_UNSTABLE_ATRIBUTES`

[David M. Lloyd]

Please review this small change to fix a misspelling. The constant is not used directly; rather it is used by ordinal, which explains why the error was not found sooner.

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Commit messages:
 - 8340200: Misspelled constant `AttributesProcessingOption.DROP_UNSTABLE_ATRIBUTES`

Changes: https://git.openjdk.org/jdk/pull/21020/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21020&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340200
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21020.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21020/head:pull/21020

PR: https://git.openjdk.org/jdk/pull/21020