Fix breakage caused by previous commit. The lkmnosys and lkmressys
syscalls are of type NODEF but not in a way that fits the given
definition of that type. The exact difference of lkmressys and
lkmnosys is unclear, which makes it all the more confusing. A
reevaluation of what we have and what we really need is in order.

Spotted by: Maxime Henrion <mux@qualys.com>
Pointy hat: marcel