hw: Move MC146818 device from hw/timer/ to hw/rtc/ subdirectory

The MC146818 is a Real Time Clock, not a timer.
Move it under the hw/rtc/ subdirectory.

Use copyright statement from 80cabfad163 for "hw/rtc/mc146818rtc.h".

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191003230404.19384-4-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/MAINTAINERS b/MAINTAINERS
index 2e13ba4..7eba146 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1261,7 +1261,7 @@
 F: hw/misc/pc-testdev.c
 F: hw/timer/hpet*
 F: hw/timer/i8254*
-F: hw/timer/mc146818rtc*
+F: hw/rtc/mc146818rtc*
 F: hw/watchdog/wdt_ib700.c
 F: hw/watchdog/wdt_i6300esb.c
 F: include/hw/display/vga.h
@@ -1273,7 +1273,7 @@
 F: include/hw/isa/superio.h
 F: include/hw/timer/hpet.h
 F: include/hw/timer/i8254*
-F: include/hw/timer/mc146818rtc*
+F: include/hw/rtc/mc146818rtc*
 
 Machine core
 M: Eduardo Habkost <ehabkost@redhat.com>