[llvm] [RISCV][llvm] Handle `ptr` element type in `lowerDeinterleaveIntrinsicToLoad` and `lowerInterleaveIntrinsicToStore` (PR #107079)

[Maksim Shabunin via llvm-commits]

mshabunin wrote:

Sorry for misleading comment, with that reproducer incorrect instruction is `vfncvt.x.f.w v11,v10` with m1 group:
```
/work/chains/llvm-19.1.0/bin/llvm-objdump -d test_intrin-72f8b0.o | grep -B 2 vfncvt
<cut>
     50e: 0aab5557     	vfsub.vf	v10, v10, fs6
     512: 0d007557     	vsetvli	a0, zero, e32, m1, ta, ma
     516: 4aa895d7     	vfncvt.x.f.w	v11, v10
<cut>
```

https://github.com/llvm/llvm-project/pull/107079