[jdk17u-dev] RFR: 8297476: Increase InlineSmallCode default from 1000 to 2500 for RISC-V

[Fei Yang]

I would like to backport [JDK-8297476](https://bugs.openjdk.org/browse/JDK-8297476). Patch applies cleanly.
This improves renaissance benchmark performance obviously on linux-riscv64 platform.
And this won't affect other platforms as it doesn't change the default value of the parameter for them.

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Commit messages:
 - Backport 5e196b4b8e623107424e2fb54672790fd925fe73

Changes: https://git.openjdk.org/jdk17u-dev/pull/1565/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1565&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297476
  Stats: 7 lines in 1 file changed: 0 ins; 6 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1565.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1565/head:pull/1565

PR: https://git.openjdk.org/jdk17u-dev/pull/1565