wacom: Fix build of gnome-46 handling of fallback tablet without introducing new strings
Commit 8bb1ceb5 broke the gnome-46 CI build as it introduced changes that depend on missing commit b82621a3. See https://gitlab.gnome.org/GNOME/gnome-control-center/-/jobs/4389244
Commit b82621a3 introduces a custom device description linking to the docs for more information about the generic/fallback tablet, but this backport drops that part of the changes so that we don't break string freeze for gnome-46.
Edited by Felipe Borges