RFR: 8329510: Update ProblemList for JFileChooser/8194044/FileSystemRootTest.java

[Alexey Ivanov]

Update the problem-list entry for ` javax/swing/JFileChooser/8194044/FileSystemRootTest.java` to refer to [JDK-8327236](https://bugs.openjdk.org/browse/JDK-8327236) under which the failure with `"root drive reported as false"` is tracked.

-------------

Commit messages:
 - 8329510: Update ProblemList for JFileChooser/8194044/FileSystemRootTest.java

Changes: https://git.openjdk.org/jdk/pull/18580/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18580&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8329510
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18580.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18580/head:pull/18580

PR: https://git.openjdk.org/jdk/pull/18580