Vagrantfile is in dev/vagrant directory on repository,
so to reach the main directory, it should sync "../.."
path instead of "..".
Change-Id: I7d142c8239423f5de52de5602a732770bb1d7c6c
Closes-Bug: #1504426
THe top level dev directory is now used to store the heat and
vagrant development environments.
backport: liberty
TrivialFix
Change-Id: Ib0922b90eacaa8518aee09cdeb46f4ac0437e015