[jdk17u-dev] RFR: 8296591: Signature benchmark

[Goetz Lindenmaier]

I backport this for parity with 17.0.15-oracle.

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Commit messages:
 - Backport a5d838c337599d740e7940d7303b327199f4d07b

Changes: https://git.openjdk.org/jdk17u-dev/pull/3184/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3184&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8296591
  Stats: 98 lines in 1 file changed: 98 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3184.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3184/head:pull/3184

PR: https://git.openjdk.org/jdk17u-dev/pull/3184