I don't think so.
POV is point of view so you never see the guy really just "his view". Gonzo I think is more like amateur style filming and/or where the guy holding the camera and his friends in some instances are all involved in the film making. It's a free for all. POV is simply point of view.
EDIT: Here, look it up:
http://en.wikipedia.org/wiki/Gonzo_pornography