Azure scale: Disable host-level API availability checks

Author: nojnhuh

config/jobs/kubernetes/sig-scalability/sig-scalability-periodic-azure.yaml

@@ -90,6 +90,11 @@ periodics:
           value: "true"
         - name: CL2_API_AVAILABILITY_PERCENTAGE_THRESHOLD
           value: "99.5"
+        # CAPZ clusters don't expose each individual control plane node.
+        - name: CL2_API_AVAILABILITY_MEASUREMENT_IPS_CONFIGURED
+          value: "true"
+        - name: CL2_API_AVAILABILITY_MEASUREMENT_USE_INTERNAL_IPS
+          value: "false"
         # Don't install Azure disk CSI driver as it's installed using a HelmChartProxy
         - name: DEPLOY_AZURE_CSI_DRIVER
           value: "false"