OSMENG-1047 Use constraints from VDU definition

Change-Id: I12c8f5f000488c8cd59e094ca7ab332548ea93e8
Signed-off-by: Gulsum Atici <gulsum.atici@canonical.com>
diff --git a/osm_common/temporal_constants.py b/osm_common/temporal_constants.py
index 63f90e1..91a45ac 100644
--- a/osm_common/temporal_constants.py
+++ b/osm_common/temporal_constants.py
@@ -42,6 +42,7 @@
 ACTIVITY_GET_TASK_QUEUE = "get_task_queue"
 ACTIVITY_GET_VNF_DETAILS = "get_vnf_details"
 ACTIVITY_SET_VNF_MODEL = "set-vnf-model"
+ACTIVITY_GET_VIM_CLOUD = "get-vim-cloud"
 
 # Workflows
 WORKFLOW_NSLCM_NO_OP = "nslcm-no-op"