Include hw/qdev-properties.h less

In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h.  Include hw/qdev-core.h there
instead.

hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.

While there, delete a few superfluous inclusions of hw/qdev-core.h.

Touching hw/qdev-properties.h now recompiles some 1200 objects.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>

hw/lm32/lm32.h

@@ -2,6 +2,7 @@
 #define HW_LM32_H
 
 #include "hw/char/lm32_juart.h"
+#include "hw/qdev-properties.h"
 
 static inline DeviceState *lm32_pic_init(qemu_irq cpu_irq)
 {

hw/lm32/milkymist-hw.h

@@ -1,7 +1,7 @@
 #ifndef QEMU_HW_MILKYMIST_HW_H
 #define QEMU_HW_MILKYMIST_HW_H
 
-#include "hw/qdev.h"
+#include "hw/qdev-core.h"
 #include "net/net.h"
 
 static inline DeviceState *milkymist_uart_create(hwaddr base,

hw/lm32/milkymist.c

@@ -30,6 +30,7 @@
 #include "sysemu/reset.h"
 #include "hw/boards.h"
 #include "hw/loader.h"
+#include "hw/qdev-properties.h"
 #include "elf.h"
 #include "milkymist-hw.h"
 #include "hw/display/milkymist_tmu2.h"