gvinterface: make opening device faster
gvinterface: make opening device faster

During arv_open_device call, don't try to get the list of all the
devices when discovering using GigEVision, but return as soon a match is
found.

AravisProject/aravis,AravisProject/aravis,AravisProject/aravis,AravisProject/aravis,AravisProject/aravis