Run nvidia-gpu device-plugin daemonset as an addon on GCE nodes that have nvidia GPUs attached.

cluster/common.sh

@@ -873,6 +873,11 @@ EOF
     if [ -n "${CLUSTER_SIGNING_DURATION:-}" ]; then
       cat >>$file <<EOF
 CLUSTER_SIGNING_DURATION: $(yaml-quote ${CLUSTER_SIGNING_DURATION})
+EOF
+    fi
+    if [[ "${NODE_ACCELERATORS:-}" == *"type=nvidia"* ]]; then
+      cat >>$file <<EOF
+ENABLE_NVIDIA_GPU_DEVICE_PLUGIN: $(yaml-quote "true")
 EOF
     fi