MAINTAINERS: Update maintainers for new Documentaion/litmus-tests/

Also add me as Reviewer for LKMM. Previously a patch to do this was
Acked but somewhere along the line got lost. Add myself in this patch.

Acked-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Andrea Parri <parri.andrea@gmail.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
1 file changed