include missing passwords::bugzilla

this was missing in bugzilla module while
it already tried a scope.lookupvar for them
in the localconfig .erb

resulting in configs being written but with
passwords as literally string 'undefined'

was ok for testing so far but now need them
to get db connection working on test db

Change-Id: I81111d6daad911a6660cfe0f0b313ff8ebf85e8f