Add openstack_node_role parameter

Add openstack_node_role parameter that will specify node role
primary|secondary. This metadata will be used by formulas as a
trigger to run one-shot operations.

Change-Id: I230590bc5f9d53960c6edaf7e37c44541d9c3342
Related-Prod: PROD-21267
diff --git a/reclass/storage/system/openstack_control_single.yml b/reclass/storage/system/openstack_control_single.yml
index e7329da..fe5c870 100644
--- a/reclass/storage/system/openstack_control_single.yml
+++ b/reclass/storage/system/openstack_control_single.yml
@@ -14,3 +14,4 @@
             salt_master_host: ${_param:reclass_config_master}
             linux_system_codename: ${_param:openstack_control_system_codename}
             single_address: ${_param:openstack_control_node01_address}
+            openstack_node_role: primary