Throw an error for unsupported cases of grf_size

### Describe the bug

See https://github.com/intel/llvm/pull/23195 for context

### To reproduce

_No response_

### Environment

- OS: [e.g Windows/Linux]
- Target device and vendor: [e.g. Intel GPU]
- DPC++ version: [e.g. commit hash or output of `clang++ --version`]
- Dependencies version: [e.g. the output of `sycl-ls --verbose`]

### Additional context

_No response_