RFR: 8345285: [s390x] test failures: foreign/normalize/TestNormalize.java with C2

[Amit Kumar]

Fixes `foreign/normalize/TestNormalize.java` failure on s390x.

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Commit messages:
 - updates sender_sp for upcall_stub frame

Changes: https://git.openjdk.org/jdk/pull/23197/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23197&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345285
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/23197.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23197/head:pull/23197

PR: https://git.openjdk.org/jdk/pull/23197