MAINTAINERS: Update timer related entries

Bring the existing file list up to date and add a new entry for
timekeeping and ntp. Assign John Stultz to this new entry so he gets
all the blame :)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <johnstul@us.ibm.com>

MAINTAINERS

@@ -2730,6 +2730,10 @@ M:	Thomas Gleixner <tglx@linutronix.de>
 S:	Maintained
 F:	Documentation/timers/
 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/hrtimer.h
 
 HIGH-SPEED SCC DRIVER FOR AX.25
@@ -4986,6 +4990,18 @@ F:	drivers/media/common/saa7146*
 F:	drivers/media/video/*7146*
 F:	include/media/*7146*
 
+TIMEKEEPING, NTP
+M:	John Stultz <johnstul@us.ibm.com>
+M:	Thomas Gleixner <tglx@linutronix.de>
+S:	Supported
+F:	include/linux/clocksource.h
+F:	include/linux/time.h
+F:	include/linux/timex.h
+F:	include/linux/timekeeping.h
+F:	kernel/time/clocksource.c
+F:	kernel/time/time*.c
+F:	kernel/time/ntp.c
+
 TLG2300 VIDEO4LINUX-2 DRIVER
 M:	Huang Shijie <shijie8@gmail.com>
 M:	Kang Yong <kangyong@telegent.com>