ipatests/test_xmlrpc/tracker/server_plugin.py: Increase hard coded mindomainlevel

The hard coded mindomainlevel needs to be increased to 1.

See: https://pagure.io/freeipa/issue/7669
Signed-off-by: Thomas Woerner <twoerner@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

ipatests/test_xmlrpc/tracker/server_plugin.py

@@ -50,7 +50,7 @@ class ServerTracker(Tracker):
                 u"ipaSupportedDomainLevelConfig"
             ],
             ipamaxdomainlevel=[u"1"],
-            ipamindomainlevel=[u"0"],
+            ipamindomainlevel=[u"1"],
         )
         self.exists = True