feat(gpu): set deviceIDStrategy=index in device plugin Helm values

Using index-based device IDs improves compatibility across platforms
including Jetson/Tegra-based systems, and aligns with the numeric
device naming expected in CDI specs.

Author: elezar

deploy/kube/gpu-manifests/nvidia-device-plugin-helmchart.yaml

@@ -33,6 +33,7 @@ spec:
   valuesContent: |-
     runtimeClassName: nvidia
     deviceListStrategy: cdi-cri
+    deviceIDStrategy: index
     cdi:
       nvidiaHookPath: /usr/bin/nvidia-cdi-hook
     nvidiaDriverRoot: "/"