[llvm] [llvm] Consistently respect `naked` fn attribute in `TargetFrameLowering::hasFP()` (PR #106014)

[Alex Rønne Petersen via llvm-commits]

alexrp wrote:

I was going to do that initially. But there are a few targets for which I didn't make this change - namely AMDGPU, BPF, Lanai, and NVPTX. These currently always return true in `hasFP()` and I don't know enough about these targets to make the change with confidence there.

https://github.com/llvm/llvm-project/pull/106014