gcc-plugin/examples/vector_scal/vector_scal.c: Fix the OpenCL codelet.

gcc-plugin/examples/vector_scal/vector_scal.c

@@ -114,7 +114,7 @@ vector_scal_opencl (unsigned int size, float vector[size], float factor)
   if (err)
     STARPU_OPENCL_REPORT_ERROR (err);
 
-  size_t global = 1, local = 1;
+  size_t global = size, local = 1;
   err = clEnqueueNDRangeKernel (queue, kernel, 1, NULL, &global, &local, 0,
 				NULL, &event);
   if (err != CL_SUCCESS)