Update cuda_collectd.py.j2

Former-commit-id: 359f414a

roles/collectd/templates/cuda_collectd.py.j2

@@ -21,12 +21,12 @@ def read(data=None):
                     pass
 
                 try:
-                    vl.dispatch(type='utilization', type_instance='memory',
+                    vl.dispatch(type='mem_utilization',
                             values=[1e6 * float(gpu.find('utilization/memory_util').text.split()[0])])
                 except:
                     pass
                 try:
-                    vl.dispatch(type='utilization', type_instance='gpu',
+                    vl.dispatch(type='gpu_utilization',
                             values=[1e6 * float(gpu.find('utilization/gpu_util').text.split()[0])])
                 except:
                     pass