MAINTAINERS: update HIGH RESOLUTION TIMERS patterns

clockchips.h was typoed as clockevents.h
Signed-off-by: NJoe Perches <joe@perches.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -3012,7 +3012,7 @@ F:	kernel/hrtimer.c
 F:	kernel/time/clockevents.c
 F:	kernel/time/tick*.*
 F:	kernel/time/timer_*.c
-F:	include/linux/clockevents.h
+F:	include/linux/clockchips.h
 F:	include/linux/hrtimer.h
 
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