switch over nova to using $(project_id) in service catalog

This makes one less place we reference tenant_id

Change-Id: I53dfeb4d23a9babf7bb46fd3736b4ac005e45993
diff --git a/lib/nova b/lib/nova
index ab2bef8..1b3d086 100644
--- a/lib/nova
+++ b/lib/nova
@@ -421,17 +421,17 @@
         get_or_create_endpoint \
             "compute_legacy" \
             "$REGION_NAME" \
-            "$nova_api_url/v2/\$(tenant_id)s" \
-            "$nova_api_url/v2/\$(tenant_id)s" \
-            "$nova_api_url/v2/\$(tenant_id)s"
+            "$nova_api_url/v2/\$(project_id)s" \
+            "$nova_api_url/v2/\$(project_id)s" \
+            "$nova_api_url/v2/\$(project_id)s"
 
         get_or_create_service "nova" "compute" "Nova Compute Service"
         get_or_create_endpoint \
             "compute" \
             "$REGION_NAME" \
-            "$nova_api_url/v2.1/\$(tenant_id)s" \
-            "$nova_api_url/v2.1/\$(tenant_id)s" \
-            "$nova_api_url/v2.1/\$(tenant_id)s"
+            "$nova_api_url/v2.1/\$(project_id)s" \
+            "$nova_api_url/v2.1/\$(project_id)s" \
+            "$nova_api_url/v2.1/\$(project_id)s"
     fi
 
     if is_service_enabled n-api; then