[jdk18] RFR: 8279924: [PPC64, s390] implement frame::is_interpreted_frame_valid checks

[Martin Doerr]

Implement frame::is_interpreted_frame_valid like on other platforms. Only interpreter_frame_initial_sp_offset needed to be replaced because it doesn't exist on these platforms.

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Commit messages:
 - 8279924: [PPC64, s390] implement frame::is_interpreted_frame_valid checks

Changes: https://git.openjdk.java.net/jdk18/pull/96/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18&pr=96&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8279924
  Stats: 100 lines in 2 files changed: 96 ins; 2 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk18/pull/96.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18 pull/96/head:pull/96

PR: https://git.openjdk.java.net/jdk18/pull/96