hw/rtc/mc146818: Include mc146818rtc_regs.h a bit less

Only 2 source files require the "mc146818rtc_regs.h" header.
Instead of having it processed 12 times, by all objects
using "mc146818rtc.h", include it directly where used.
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>
Signed-off-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191003230404.19384-13-philmd@redhat.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

hw/rtc/mc146818rtc.c

@@ -35,6 +35,7 @@
 #include "sysemu/reset.h"
 #include "sysemu/runstate.h"
 #include "hw/rtc/mc146818rtc.h"
+#include "hw/rtc/mc146818rtc_regs.h"
 #include "migration/vmstate.h"
 #include "qapi/error.h"
 #include "qapi/qapi-commands-misc-target.h"

hw/timer/hpet.c

@@ -34,6 +34,7 @@
 #include "hw/timer/hpet.h"
 #include "hw/sysbus.h"
 #include "hw/rtc/mc146818rtc.h"
+#include "hw/rtc/mc146818rtc_regs.h"
 #include "migration/vmstate.h"
 #include "hw/timer/i8254.h"
 

include/hw/rtc/mc146818rtc.h

@@ -10,7 +10,6 @@
 #define HW_RTC_MC146818RTC_H
 
 #include "hw/isa/isa.h"
-#include "hw/rtc/mc146818rtc_regs.h"
 
 #define TYPE_MC146818_RTC "mc146818rtc"