Currently v2 and v2.1 have separate functional tests and their
corresponding sample files. As v2 and v2.1 are supposed to be identical,
there is overhead to maintain two set of functional tests and sample files.
We can have one set of tests which can run for both v2 and v2.1.
This commit merges server password functional tests.
Previously there was no functional tests of server password in v2.1.
In V2.1 os-access-ip is separate plugin where in v2 it was mixed in server
plugin itself. So os-access-ip extension is enabled to run
merged functional tests for both v2 and v2.1.
Change-Id: Ibdc443c1274c26b6816639f37e72725f1487454f
82ecfff114