RFR: 8358694: VM asserts if CodeCacheSegmentSize is not a power of 2

[Amit Kumar]

Makes sure that JVM exits gracefully when `CodeCacheSegmentSize` is not a power of 2.

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Commit messages:
 - make jvm exit gracefully

Changes: https://git.openjdk.org/jdk/pull/25708/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25708&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358694
  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/25708.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25708/head:pull/25708

PR: https://git.openjdk.org/jdk/pull/25708