Since commit 1e0900fd ("lib/intel_compute: Migrate xe_compute
library to intel_compute") had changed the `struct xe_compute_kernels`
to `struct intel_compute_kernels`, we should update it in the
./opencl/gen_opencl_kernel script.

Signed-off-by: Min Zhou <zhoumin@loongson.cn>
Reviewed-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>