hw/i386: Move ACPI header definitions in an arch-independent location

The ACPI related header file acpi-defs.h, includes definitions that
apply on other architectures as well. Move it in `include/hw/acpi/`
to sanely include it from other architectures.

Signed-off-by: Alvise Rigo <a.rigo@virtualopensystems.com>
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/acpi-build.c

@@ -33,7 +33,7 @@
 #include "hw/i386/pc.h"
 #include "target-i386/cpu.h"
 #include "hw/timer/hpet.h"
-#include "hw/i386/acpi-defs.h"
+#include "hw/acpi/acpi-defs.h"
 #include "hw/acpi/acpi.h"
 #include "hw/nvram/fw_cfg.h"
 #include "hw/acpi/bios-linker-loader.h"

tests/bios-tables-test.c

@@ -17,7 +17,7 @@
 #include "qemu-common.h"
 #include "libqtest.h"
 #include "qemu/compiler.h"
-#include "hw/i386/acpi-defs.h"
+#include "hw/acpi/acpi-defs.h"
 #include "hw/i386/smbios.h"
 #include "qemu/bitmap.h"