dce-quagga test suite has some tests stubbed out

[tomhenderson]

I discovered some tests have been stubbed out for a long time in dce-quagga-test.cc:

#ifdef FIXME
    { "radvd", 120, false},
    { "ripd", 120, false},
    { "ripngd", 120, false},
    { "ospf6d", 120, false},
    { "bgpd_v6", 120, false},
#endif

Some additional ones will need to be stubbed out for DCE 1.12. Some of these tests run successfully as individual test cases but as a sequence of test cases in the same program execution, they fail, suggesting that possibly there are some static data issues with running the tests this way.