RFR: 8352159: RISC-V: add more zfa support [v4]

[Hamlin Li]

> Hi,
> Can you help to review this patch?
> 
> Previously in https://github.com/openjdk/jdk/pull/23844, `loadConH` is implemented only with `flh`, but `fli_h` should be more efficient if Zfa is supported; min/max for HF could use fmin/maxm.h instead too.
> 
> Thanks!

Hamlin Li has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains six commits:

 - merge master
 - fix fli_h
 - fix rFlagsReg
 - refactor min/max
 - min/max
 - initial commit

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Changes: https://git.openjdk.org/jdk/pull/24081/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24081&range=03
  Stats: 123 lines in 4 files changed: 93 ins; 9 del; 21 mod
  Patch: https://git.openjdk.org/jdk/pull/24081.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24081/head:pull/24081

PR: https://git.openjdk.org/jdk/pull/24081