RFR: 8335367: [s390] Add support for load immediate on condition instructions.

[Manjunath S Matti.]

Add support for load immediate on condition instructions.

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Commit messages:
 - Update
 - Add support for load immediate on condition instructions

Changes: https://git.openjdk.org/jdk/pull/22058/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22058&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335367
  Stats: 18 lines in 3 files changed: 15 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/22058.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22058/head:pull/22058

PR: https://git.openjdk.org/jdk/pull/22058