API: Fixed condition based on is_extension_available. (#726)
API: Fixed condition based on is_extension_available. (#726)

enqueue_kernel was being run when the cl_khr_create_command_queue was *not* present. The test should only be run when the extension *is* present.

Regressed in 93e76a8a4a7d63b7e507ac72ae13a7e755cbda88.
KhronosGroup/OpenCL-CTS,KhronosGroup/OpenCL-CTS,KhronosGroup/OpenCL-CTS,KhronosGroup/OpenCL-CTS