MAINTAINERS: Update file patterns in the lockdep and scheduler entries

Propagate the file movement effects of the following commits:

  7a6354e2 sched: Move wait.c into kernel/sched/
  8eddac3f

 locking: Move the lockdep code to kernel/locking/

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1384469985.2897.32.camel@joe-AO722
Signed-off-by: Ingo Molnar <mingo@kernel.org>