Fix broken contacts common unit tests

* Brian informs me that he (or Makoto) changed the
  external account type constructor to not abort
  if it doesn't parse the xml so I updated the test
  for unknown packages to expect to get initialized.

* Looks like an omission that SIP address does not
  have a maxOccurs set to 1 when initilized.  I tried
  to change the test data file contacts_fallback.xml
  to not include a maxOccurs attr but it needs one
  and it must be set to 1.

Bug 15413731

Change-Id: I4a8a297799686885eaa64868a2b8c0f25c177f4b
2 files changed