MAINTAINERS: Add selftests/timers to the timekeeping maintainance list

Since I'm adding a bunch of tests to selftests/timers, put me
on the hook in the maintainers file.

Cc: Shuah Khan <[email protected]>
Cc: Prarit Bhargava <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Richard Cochran <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Tested-by: Prarit Bhargava <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
diff --git a/MAINTAINERS b/MAINTAINERS
index 6239a30..8454a3c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8542,6 +8542,7 @@
 F:	kernel/time/clocksource.c
 F:	kernel/time/time*.c
 F:	kernel/time/ntp.c
+F:	tools/testing/selftests/timers/
 
 SC1200 WDT DRIVER
 M:	Zwane Mwaikambo <[email protected]>