fix: adds ami details for nodeadm configs (#1334)

**What problem does this PR solve?**:
adds details required for al 2023

**Which issue(s) this PR fixes**:
stacked on #1332

**How Has This Been Tested?**:
<!--
Please describe the tests that you ran to verify your changes.
Provide output from the tests and any manual steps needed to replicate
the tests.
-->

**Special notes for your reviewer**:
<!--
Use this to provide any additional information to the reviewers.
This may include:
- Best way to review the PR.
- Where the author wants the most review attention on.
- etc.
-->

Author: faiq

charts/cluster-api-runtime-extensions-nutanix/defaultclusterclasses/eks-cluster-class.yaml

@@ -31,8 +31,8 @@ spec:
         bootstrap:
           ref:
             apiVersion: bootstrap.cluster.x-k8s.io/v1beta2
-            kind: EKSConfigTemplate
-            name: quick-start-worker-configtemplate
+            kind: NodeadmConfigTemplate
+            name: eks-quick-start-worker-configtemplate
         infrastructure:
           ref:
             apiVersion: infrastructure.cluster.x-k8s.io/v1beta2
@@ -73,6 +73,11 @@ metadata:
 spec:
   template:
     spec:
+      ami:
+        eksLookupType: AmazonLinux2023
+      instanceMetadataOptions:
+        httpPutResponseHopLimit: 2
+        httpTokens: required
       instanceType: PLACEHOLDER
       sshKeyName: ""
 ---

hack/examples/bases/eks/clusterclass/clusterclass.yaml

@@ -24,7 +24,7 @@ spec:
             ref:
               name: "quick-start-worker-configtemplate"
               apiVersion: bootstrap.cluster.x-k8s.io/v1beta2
-              kind: EKSConfigTemplate
+              kind: NodeadmConfigTemplate
           infrastructure:
             ref:
               name: "quick-start-worker-machinetemplate"
@@ -58,7 +58,12 @@ metadata:
   name: "quick-start-worker-machinetemplate"
 spec:
   template:
-    spec: {}
+    spec:
+      ami:
+        eksLookupType: AmazonLinux2023
+      instanceMetadataOptions:
+        httpTokens: required
+        httpPutResponseHopLimit: 2
 ---
 apiVersion: bootstrap.cluster.x-k8s.io/v1beta2
 kind: NodeadmConfigTemplate

hack/examples/overlays/clusterclasses/eks/kustomizeconfig.yaml

@@ -16,7 +16,7 @@ nameReference:
     fieldSpecs:
     - kind: ClusterClass
       path: spec/controlPlane/ref/name
-  - kind: EKSConfigTemplate
+  - kind: NodeadmConfigTemplate
     fieldSpecs:
     - kind: ClusterClass
       path: spec/workers/machineDeployments/template/bootstrap/ref/name