use WI-specific ID var name

Signed-off-by: Jack Francis <[email protected]>

Author: jackfrancis

templates/flavors/aks-aso/credentials.yaml

@@ -5,5 +5,5 @@ metadata:
 stringData:
  AZURE_SUBSCRIPTION_ID: ${AZURE_SUBSCRIPTION_ID}
  AZURE_TENANT_ID:       ${AZURE_TENANT_ID}
- AZURE_CLIENT_ID:       ${AZURE_CLIENT_ID}
- AUTH_MODE:             ${ASO_CREDENTIAL_SECRET_MODE}
+ AZURE_CLIENT_ID:       ${AZURE_CLIENT_ID_USER_ASSIGNED_IDENTITY}
+ AUTH_MODE:             ${ASO_CREDENTIAL_SECRET_MODE:-workloadidentity}