Incorrect checking for the float type support

[jungpark-mlir]

This is duplication of #4
I'm opening a new one because it doesn't allow reopening the issue.

And, no, I don't agree to your answer.
cl_khr_fp16/64 are the correct flags to reflect data type support in vendor's OpenCL implementation by the specification.
CL_DEVICE_NATIVE_VECTOR_WIDTH_* are just hints given from compiler/HW capability.
Intel's implementation seems to have a bug in it and you're currently propagating the bug into your code.

``For Intel Arc GPUs I had to add an additional failsafe:`
If it's a WA for the Intel's bug, you'd better check either one of them not both of them.

Regards,
Jungwook