RFR: 8313250: Exclude java/foreign/TestByteBuffer.java on AIX

[Thomas Obermeier]

exclude java/foreign/TestByteBuffer on AIX until https://bugs.openjdk.org/browse/JDK-8309475 is fixed.

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Commit messages:
 - Update ProblemList.txt exclude java/foreign/TestByteBuffer

Changes: https://git.openjdk.org/jdk/pull/15055/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15055&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8313250
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/15055.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15055/head:pull/15055

PR: https://git.openjdk.org/jdk/pull/15055