Throw an error for unsupported cases of grf_size

[sarnex]

Describe the bug

See #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