Fixes:Analytics nodes incorrectly point to database nodes Edit

Description: In addition to the fix in the provision_issu.py, I am also fixing roles, to correctly shutdown collector and UI during finalize.
Closes-Bug: 1647845
Change-Id: I2dfec073508f4ffa998a0f3dd205c15d0d9ba999

fabfile/tasks/issu_process.py

@@ -133,15 +133,15 @@ def issu_contrail_stop_old_control():
 @task
 @roles('oldwebui')
 def issu_contrail_stop_old_webui():
-    for host in env.roledefs['oldcontrol']:
+    for host in env.roledefs['oldwebui']:
         sudo("contrail-status")
         execute("stop_webui_node", host)
         sudo("contrail-status")
 
 @task
 @roles('oldcollector')
 def issu_contrail_stop_old_collector():
-    for host in env.roledefs['oldcontrol']:
+    for host in env.roledefs['oldcollector']:
         sudo("contrail-status")
         execute("stop_collector_node", host)
         sudo("contrail-status")