RFR: 8350308: [s390x] Relativize last_sp (and top_frame_sp) in interpreter frames

[Amit Kumar]

s390 Port for [JDK-8308984](https://bugs.openjdk.org/browse/JDK-8308984).

This PR depends on https://github.com/openjdk/jdk/pull/23660.


Tier1 tests with fastdebug-vm show no regression.

-------------

Commit messages:
 - Merge branch 'master' into rel_sp
 - sign extension
 - 23660
 - relativize sp

Changes: https://git.openjdk.org/jdk/pull/23690/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23690&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8350308
  Stats: 11 lines in 3 files changed: 8 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/23690.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23690/head:pull/23690

PR: https://git.openjdk.org/jdk/pull/23690