kernel-docs: Fix link from class to class-of.
kernel-docs: Fix link from class to class-of.

slavapestov/factor,bjourne/factor,bjourne/factor,AlexIljin/factor,bpollack/factor,mrjbq7/factor,mrjbq7/factor,mrjbq7/factor,nicolas-p/factor,dch/factor,bjourne/factor,dch/factor,bpollack/factor,bpollack/factor,slavapestov/factor,slavapestov/factor,tgunr/factor,AlexIljin/factor,dch/factor,bjourne/factor,bpollack/factor,factor/factor,mrjbq7/factor,bpollack/factor,slavapestov/factor,tgunr/factor,slavapestov/factor,factor/factor,bjourne/factor,slavapestov/factor,nicolas-p/factor,factor/factor,mrjbq7/factor,bpollack/factor,tgunr/factor,nicolas-p/factor,nicolas-p/factor,nicolas-p/factor,tgunr/factor,AlexIljin/factor,factor/factor,bjourne/factor,dch/factor,slavapestov/factor,factor/factor,bpollack/factor,tgunr/factor,AlexIljin/factor,mrjbq7/factor,AlexIljin/factor,dch/factor,nicolas-p/factor,nicolas-p/factor,bjourne/factor,AlexIljin/factor,tgunr/factor,factor/factor,AlexIljin/factor,dch/factor