[llvm] [RISCV][GISel] Add ZFA FP legalization and full tests for 9 insn (PR #118723)

[Luke Quinn via llvm-commits]

lquinn2015 wrote:

Still failing the MIR check validaton for G_MINIMUM and G_MAXIMUM i don't know why perhaps my test isn't covering something up

https://github.com/llvm/llvm-project/pull/118723