RFR: 8342332: [JVMCI] Export CompilerToVM::Data::dtanh

[Yudi Zheng]

https://github.com/openjdk/jdk/pull/20657 adds x86_64 intrinsic for tanh. Exporting CompilerToVM::Data::dtanh allows JVMCI compiler to reuse the same HotSpot stub.

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Commit messages:
 - [JVMCI] Export CompilerToVM::Data::dtanh

Changes: https://git.openjdk.org/jdk/pull/21535/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21535&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8342332
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21535.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21535/head:pull/21535

PR: https://git.openjdk.org/jdk/pull/21535