stv06xx in mainline

Some months ago I decided to convert the old bitrotted qc-usb v4l1 driver to the gspca framework as I have an old Quickcam Web donated by a friend.
This was done fairly but not without some problems such as that the webcam is usb 1.1 and needs some time to settle before you can start to program it. If you're too keen on touching its register, all you're going to get is a hung webcam.