Enable tempest config regeneration

Change the runtest formula behavior to always create a tempest.conf
according to the actual objects in the OpenStack

Change-Id: I9a9c10e1bf2997df6b6bf128f0c661b5ceae1b02
Related-prod: PROD-25676
(cherry picked from commit d541ea023ff4f2707221f707e1318e8b80ece38b)
diff --git a/_states/runtest.py b/_states/runtest.py
index 6700bf7..cb937c4 100644
--- a/_states/runtest.py
+++ b/_states/runtest.py
@@ -44,7 +44,7 @@
     return check_for_testing
 
 @_test_call
-def tempestconf_present(name, regenerate=False):
+def tempestconf_present(name, regenerate=True):
     """ Checks that file with config present."""