432070: change vagrantfiles to use Vagrant.configure("2")

Change-Id: I19e49c9716d6d0091fd0f086c853f0f412aada9e
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=432070
Signed-off-by: Frank Becker <Frank@Frank-Becker.de>
1 file changed