Add more platform-specific cni bindir/confdir autodetect in istio-cni Helm chart

[bleggett]

Describe the feature request

Right now we use Helm variables to autodetect and set the correct istio-cni bin dir for GKE:

https://github.com/istio/istio/blob/master/manifests/charts/istio-cni/templates/daemonset.yaml#L4

Right now GKE is the only "production" platform that seems to need this override, but several mini/local clusters require similar overrides: https://istio.io/latest/docs/ambient/install/platform-prerequisites/

We should look into expanding this autodetection for other platforms/kube variants that need similar overrides. We should also look at whether we want to do this with Helm installtime detection, or Helm profiles (sorta like we already do for openshift - do we want templating autodetect, or do we want something like helm install XXX --profile=platform-k3d?)

Should work for:

• Helm (must-have)
• Istioctl (must-have)
• manual template gen + manual apply (not must-have)

Describe alternatives you've considered

Affected product area (please put an X in all that apply)

[x] Ambient
[ ] Docs
[ ] Dual Stack
[ ] Installation
[ ] Networking
[ ] Performance and Scalability
[ ] Extensions and Telemetry
[ ] Security
[ ] Test and Release
[ ] User Experience
[ ] Developer Infrastructure

Affected features (please put an X in all that apply)

[ ] Multi Cluster
[ ] Virtual Machine
[ ] Multi Control Plane

Additional context

[howardjohn]

k3s/rancher/similar would be nice