[llvm] [RISCV] Correct the predicates for the flh/fsh InstAlias and assembler pseudos to include Zfbfmin. (PR #131920)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `polly-arm-linux` running on `hexagon-build-02` while building `llvm` at step 2 "checkout".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/90/builds/5029

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (checkout) failure: update (failure)
git version 2.48.1
git: 'remote-https' is not a git command. See 'git --help'.
fatal: remote helper 'https' aborted session
git: 'remote-https' is not a git command. See 'git --help'.
fatal: remote helper 'https' aborted session

```

</details>

https://github.com/llvm/llvm-project/pull/131920