ipatests: add --skip-overlap-check option to prepare_reverse_zone()

add --skip-overlap-check in case it overlap with an existing zone
or with dnszone outside of IPA.

Reviewed-By: Kaleemullah Siddiqui <ksiddiqu@redhat.com>

ipatests/pytest_ipa/integration/tasks.py

@@ -89,7 +89,8 @@ def prepare_reverse_zone(host, ip):
     zone = get_reverse_zone_default(ip)
     result = host.run_command(["ipa",
                       "dnszone-add",
-                      zone], raiseonerr=False)
+                      zone,
+                      '--skip-overlap-check'], raiseonerr=False)
     if result.returncode > 0:
         logger.warning("%s", result.stderr_text)
     return zone, result.returncode