Unhardcode parameters for rocky and queens

timeout_nbd and heal_instance_info_cache_interval were available
for configuration in pike so should be available and in later
releases.

Change-Id: I3bf9bcde5f60761826926d5a6e00893980925681
Related-Prod: https://mirantis.jira.com/browse/PROD-27288
diff --git a/tests/pillar/control_single.sls b/tests/pillar/control_single.sls
index 9423b53..114aee8 100644
--- a/tests/pillar/control_single.sls
+++ b/tests/pillar/control_single.sls
@@ -3,6 +3,8 @@
     enabled: true
     networking: contrail
     version: queens
+    timeout_nbd: 10
+    heal_instance_info_cache_interval: 60
     security_group: false
     vncproxy_url: 127.0.0.1
     vnc_keymap: en-gb