It's a libfprint specific prefix, so let's avoid confusion.
We had various cases in which we were using const pointers for non constant data, and in fact we were allocating and free'ing them. So let's handle all these case properly, so that we won't have newer GLib complaining at us!
Supported UID: 0x2808 Supported PIDs: 0x9E48, 0xD979, 0xa959