You can check how we have configured the secret provider class helm in .\deploy\k8s\helm\csi-secret-provider-class. You can deploy it to your AKS with:
helm upgrade --install "<release-name>" --namespace <namespace> -f csi-secret-provider-class/values.<env>.yaml --set serviceProviderClassName="<provider-class-name>" --set tenantId="<tenantId>" --set userAssignedIdentityID="<userAssignedIdentityID>" --set keyvaultName="<keyvaultName>" csi-secret-provider-class