[llvm] [RISCV] Make Zhinx and Zvfh imply Zhinxmin and Zvfhmin respectively (PR #75735)

[Craig Topper via llvm-commits]

topperc wrote:

> In the V spec, "The Zvfh extension depends on the Zve32f and Zfhmin extensions.". It seems that there is no dependency between Zvfh and Zvfhmin.

Zvfh contains all of the Zvfhmin instructions. Which makes it similar to the discussion here https://github.com/riscv/riscv-isa-manual/pull/1121

https://github.com/llvm/llvm-project/pull/75735