hw: clean up hw/hw.h includes

Include qom/object.h and exec/memory.h instead of exec/ioport.h;
exec/ioport.h was almost everywhere required only for those two
includes, not for the content of the header itself.

Remove block/aio.h, everybody is already including it through
another path.

With this change, include/hw/hw.h is freed from qemu-common.h.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

exec.c

@@ -41,6 +41,7 @@
 #else /* !CONFIG_USER_ONLY */
 #include "hw/hw.h"
 #include "exec/memory.h"
+#include "exec/ioport.h"
 #include "sysemu/dma.h"
 #include "exec/address-spaces.h"
 #include "sysemu/xen-mapcache.h"

hw/gpio/gpio_key.c

@@ -24,6 +24,7 @@
 
 #include "qemu/osdep.h"
 #include "hw/sysbus.h"
+#include "qemu/timer.h"
 
 #define TYPE_GPIOKEY "gpio-key"
 #define GPIOKEY(obj) OBJECT_CHECK(GPIOKEYState, (obj), TYPE_GPIOKEY)

include/exec/ioport.h

@@ -24,10 +24,6 @@
 #ifndef IOPORT_H
 #define IOPORT_H
 
-#include "qemu-common.h"
-#include "qom/object.h"
-#include "exec/memory.h"
-
 #define MAX_IOPORTS     (64 * 1024)
 #define IOPORTS_MASK    (MAX_IOPORTS - 1)
 

include/hw/hw.h

@@ -7,9 +7,9 @@
 #endif
 
 #include "exec/cpu-common.h"
-#include "exec/ioport.h"
+#include "qom/object.h"
+#include "exec/memory.h"
 #include "hw/irq.h"
-#include "block/aio.h"
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 

include/hw/isa/isa.h

@@ -3,8 +3,8 @@
 
 /* ISA bus */
 
-#include "exec/ioport.h"
 #include "exec/memory.h"
+#include "exec/ioport.h"
 #include "hw/qdev.h"
 
 #define ISA_NUM_IRQS 16