CLOUDSTACK-3594: Fix regression in Affinity Groups tests

One of the patches introduced a regression where account
and domainid parameters were changed. Therefore Affinity
Groups for those accounts were not found and tests failed.

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit 4a7f5d59d6)

tools/marvin/marvin/integration/lib/base.py

@@ -3020,9 +3020,9 @@ class AffinityGroup:
         if name is not None:
             cmd.name = name
         if account is not None:
-            cmd.accountname = account
+            cmd.account = account
         if domainid is not None:
-            cmd.domaindid = domainid
+            cmd.domainid = domainid
 
         return apiclient.deleteAffinityGroup(cmd)