Split resource_setup for compute tests

Split up the resource_setup method for all the compute tests, as per the
latest spec.

Partially-implements bp:resource-cleanup

Change-Id: I6562534ca5eb5e33c6f8d6cbcac5e7735535916a
diff --git a/tempest/api/compute/servers/test_server_personality.py b/tempest/api/compute/servers/test_server_personality.py
index b08dbf1..dbfee8f 100644
--- a/tempest/api/compute/servers/test_server_personality.py
+++ b/tempest/api/compute/servers/test_server_personality.py
@@ -23,8 +23,8 @@
 class ServerPersonalityTestJSON(base.BaseV2ComputeTest):
 
     @classmethod
-    def resource_setup(cls):
-        super(ServerPersonalityTestJSON, cls).resource_setup()
+    def setup_clients(cls):
+        super(ServerPersonalityTestJSON, cls).setup_clients()
         cls.client = cls.servers_client
         cls.user_client = cls.limits_client