Support UEFI mode for ironic

Add support uefi mode

Change-Id: If32afb9c89722d21dda340a0fc675c86cafdb80e
Related-prod: PROD-23407 (PROD:23407)
diff --git a/metadata/service/conductor/single.yml b/metadata/service/conductor/single.yml
index 1806b85..e50a070 100644
--- a/metadata/service/conductor/single.yml
+++ b/metadata/service/conductor/single.yml
@@ -4,6 +4,8 @@
   ironic:
     conductor:
       enabled: true
+      uefi:
+        enabled: false
       version: ${_param:ironic_version}
       message_queue:
         engine: rabbitmq