scutarius-nvidia-modules: the NVIDIA open modules as a source package built
by sbuild against the Scutarius gb10 kernel headers (spec K7). Bump KABI in
debian/rules + the package names in debian/control on every kernel ABI
change (Debian's linux-signed does the same by regeneration; ours is manual
because it is two packages). The build output is unsigned/uncompressed on
purpose: scripts/pkg/sign-linux.sh signs (module-signing key, superego only),
xz-compresses with kbuild's flags, and repacks for upload.
