Removal of methods from json/xml network_client files

Remove create_security_group, create_security_group_rule
from "json/network_client.py" and "xml/network_client.py"
and instead use "_creater"/"_updater" from "network_client_base.py"

Change-Id: I2f0b16ea832fe0704869a9d778a8d3ed518090cc
diff --git a/tempest/api/network/base_security_groups.py b/tempest/api/network/base_security_groups.py
index 38ae4ac..90be454 100644
--- a/tempest/api/network/base_security_groups.py
+++ b/tempest/api/network/base_security_groups.py
@@ -26,7 +26,7 @@
     def _create_security_group(self):
         # Create a security group
         name = data_utils.rand_name('secgroup-')
-        resp, group_create_body = self.client.create_security_group(name)
+        resp, group_create_body = self.client.create_security_group(name=name)
         self.assertEqual('201', resp['status'])
         self.addCleanup(self._delete_security_group,
                         group_create_body['security_group']['id'])