Add Kirk McKusick's kernel class (based on the latest D and I) to the events list

Differential Revision:	https://reviews.freebsd.org/D1300
Submitted by:	mckusick (original)
Approved by:	wblock (mentor)


git-svn-id: svn+ssh://svn.freebsd.org/doc/head@46091 c2e8774f-c49f-e111-b436-862b2bbc8956