RFR: 8343884: [s390x] Disallow OptoScheduling

[Amit Kumar]

amit at a3560042:~/jdk$ ./build/linux-s390x-server-fastdebug/jdk/bin/java -XX:+OptoScheduling --version 
OpenJDK 64-Bit Server VM warning: OptoScheduling is not supported on this CPU.
openjdk 24-internal 2025-03-18
OpenJDK Runtime Environment (fastdebug build 24-internal-adhoc.amit.jdk)
OpenJDK 64-Bit Server VM (fastdebug build 24-internal-adhoc.amit.jdk, mixed mode)
amit at a3560042:~/jdk$

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Commit messages:
 - disable opto scheduling

Changes: https://git.openjdk.org/jdk/pull/22059/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22059&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343884
  Stats: 6 lines in 1 file changed: 6 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/22059.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22059/head:pull/22059

PR: https://git.openjdk.org/jdk/pull/22059