2014-07-21  Shilpa Shri  <shilpa.shri@samsung.com>

        Support KHR_fp16 extension in WebCL.

        Issue #531

        Reviewed by NOBODY (OOPS!).

        Correcting a minor enum mistake.

        Conformance tests ::
        conformance/extension/KHR_fp16/bindingTesting/cl_webcl_khr_fp16_constants_check.html
        conformance/extension/KHR_fp16/bindingTesting/cl_device_getinfo.html

        * Modules/webcl/WebCL.idl: