SYCL: disable faulty fp16 exp kernel (#14395)
* SYCL: disable faulty fp16 CPU exponent for now
* Revert "SYCL: disable faulty fp16 CPU exponent for now"
This reverts commit ed0aab1ec31b4eb4b0f275dd7acd41d96a375202.
* SYCL: disable faulty fp16 CPU exponent for now
* Fix logic of disabling exponent kernel