RFR: 8341101: [ARM32] Error: ShouldNotReachHere() in TemplateInterpreterGenerator::generate_math_entry after 8338694

[Boris Ulasevich]

[JDK-8338694](https://bugs.openjdk.org/browse/JDK-8338694) introduced Interpreter::java_lang_math_tanh which needs to be handled by the interpreter. Since the intrinsic is not implemented for ARM32, it should be implicitly skipped it in the TemplateInterpreterGenerator::generate_math_entry to avoid ShouldNotReachHere.

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Commit messages:
 - 8341101: [ARM32] Error: ShouldNotReachHere() in TemplateInterpreterGenerator::generate_math_entry after 8338694

Changes: https://git.openjdk.org/jdk/pull/21228/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21228&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341101
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21228.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21228/head:pull/21228

PR: https://git.openjdk.org/jdk/pull/21228