RFR: 8322649: Improve class initialization barrier in TemplateTable::_new for S390

[Amit Kumar]

s390 Port implementation for https://github.com/openjdk/jdk/pull/17006, 

Testing: 
Build: fastdebug + release 
Test: Tier1 {fastdebug}

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Commit messages:
 - s390 port

Changes: https://git.openjdk.org/jdk/pull/17481/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17481&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8322649
  Stats: 12 lines in 1 file changed: 0 ins; 5 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/17481.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17481/head:pull/17481

PR: https://git.openjdk.org/jdk/pull/17481