Collect logs: count avc denials from Undercloud

Seems that undercloud is excluded from reported number
of selinux avc denials, due to it also being tester.
(Which was removed from the reported sets,
 due to it being non-product node in past/packstack jobs,
 and theoretically still can be non-product in special cases).

Change-Id: If2fd4b9fd999e530c5688bb6c6d2db835f9a9699

Author: queria

plugins/collect-logs/main.yml

@@ -39,8 +39,9 @@
             selinux_problems_list: []
             segfault_problems: 0
             oom_killer_problems: 0
-            counted_hosts: "{{ groups['all'] | difference( groups['local'] + (groups['tester'] | default([]) | difference(groups['controller']|default([]))) ) }}"
-
+            # aggregate from all hosts, excluding any nonproduct ones
+            # non product is localhost and tester nodes (unless they are also UC or controller too)
+            counted_hosts: "{{ groups['all'] | difference( groups['local'] + (groups['tester'] | default([]) | difference(groups['undercloud']|default([]) + groups['controller']|default([]))) ) }}"
       - debug:
             msg: "counting issues from hosts: {{ counted_hosts }}"