RFR: JDK-8293681 ResponseAPDU getData() method javadoc

[Mark Powers]

https://bugs.openjdk.org/browse/JDK-8293681

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Commit messages:
 - first iteration

Changes: https://git.openjdk.org/jdk/pull/10732/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10732&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293681
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/10732.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10732/head:pull/10732

PR: https://git.openjdk.org/jdk/pull/10732