[llvm] [InlineAsm] break up Data Bitfield::Element into corresponding fields (PR #66297)

[Danila Malyutin via llvm-commits]

danilaml wrote:

Would be nice to get this merged to get rid of
```
llvm-project/llvm/include/llvm/IR/InlineAsm.h:381:16: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
              D >= static_cast<uint32_t>(ConstraintCode::Unknown) &
```
warning spam

https://github.com/llvm/llvm-project/pull/66297