Add missing cl_arm_job_slot_selection extension to XML (#824)

Change-Id: I8267f927449c0d884f82c7952b9cee99b50d1b19

Author: kpet

xml/cl.xml

@@ -7136,6 +7136,14 @@ server's OpenCL/api-docs repository.
                 <enum name="CL_QUEUE_NO_SYNC_OPERATIONS_INTEL"/>
             </require>
         </extension>
+        <extension name="cl_arm_job_slot_selection" supported="opencl">
+            <require comment="cl_device_info">
+                <enum name="CL_DEVICE_JOB_SLOTS_ARM"/>
+            </require>
+            <require comment="cl_queue_properties">
+                <enum name="CL_QUEUE_JOB_SLOT_ARM"/>
+            </require>
+        </extension>
         <extension name="cl_khr_command_buffer_mutable_dispatch" comment="version 0.9.0" supported="opencl">
             <require>
                 <type name="CL/cl.h"/>