Cisco: Fix test cases which make incorrect create requests

Some test cases in the test_n1kv_plugin module are sending more than
one dictionary while creating the network profile resources. This
patch corrects these erroneous test cases while preserving the test
cases intended behavior.

Change-Id: I99de0b708218cf5217ecf47c74a30f75d0733e25
Closes-bug: #1347963
Merge "Cisco: Fix test cases which make incorrect create requests"