RFR: 8373246: JDK-8351842 broke native debugging on Linux

[Thomas Stuefe]

Simple fix to restore debuginfo files to their proper places in the images.

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Commit messages:
 - fix

Changes: https://git.openjdk.org/jdk/pull/28699/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28699&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373246
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28699.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28699/head:pull/28699

PR: https://git.openjdk.org/jdk/pull/28699