selftests: move RTC tests to rtc subfolder

Move the RTC tests out of the timers folder as they are mostly unrelated.
Keep rtcpie in timers as it only test hrtimers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index ca4afd6..a376a4a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11878,7 +11878,7 @@
 F:	include/uapi/linux/rtc.h
 F:	include/linux/rtc/
 F:	include/linux/platform_data/rtc-*
-F:	tools/testing/selftests/timers/rtctest.c
+F:	tools/testing/selftests/rtc/
 
 REALTEK AUDIO CODECS
 M:	Bard Liao <bardliao@realtek.com>