[mlir][llvmir] Add SameOperandsAndResultType trait to LLVM_CountZerosIntrOp (#131133)
According to https://llvm.org/docs/LangRef.html#llvm-ctlz-intrinsic and
https://llvm.org/docs/LangRef.html#llvm-cttz-intrinsic, The return type
of `llvm.intr.ctlz` and `llvm.intr.cttz` must match the first argument
type.