Currently kernel audit events for jail_set(2), jail_get(2), jail_attach(2),
jail_remove(2) and finally setloginclass(2) are not being converted and
committed into userspace. Add the cases for these syscalls and make sure
they are being converted properly.

Reviewed by: bz, kevans
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D23882