[jdk21u-dev] RFR: 8338550: Do libubsan1 installation in test container only if requested

[Matthias Baesken]

8338550: Do libubsan1 installation in test container only if requested

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Commit messages:
 - Backport 7933e45cda7e3eaeabd3b3fa81492ade8e1cc2dc

Changes: https://git.openjdk.org/jdk21u-dev/pull/1165/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1165&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338550
  Stats: 10 lines in 2 files changed: 6 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1165.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1165/head:pull/1165

PR: https://git.openjdk.org/jdk21u-dev/pull/1165