Who gives a consent for data publication?
Actually, you don't have too many options except keeping your advisor busy about it. There are some universities apply the rule that if the data do not get published in 2 years or so the advisor can publish it wihtout the consent of the student. However in your situation you don't have right something like that. On the other hand, if you persuade your advisor that you are willing to publish a paper using only your data you may get your advisor's consent. Good Luck