MAINTAINERS, sched: Update file pattern

Took a while to sort out these bits and we'd like to be Cc:-ed on
future modifications to the waitqueue APIs and all that.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-0ix315c7qcz88slmnrpshvmf@git.kernel.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

MAINTAINERS

@@ -7256,6 +7256,8 @@ S:	Maintained
 F:	kernel/sched/
 F:	include/linux/sched.h
 F:	include/uapi/linux/sched.h
+F:	kernel/wait.c
+F:	include/linux/wait.h
 
 SCORE ARCHITECTURE
 M:	Chen Liqin <liqin.chen@sunplusct.com>