x86: acpi-build: do not include hw/isa/isa.h directly

the last remaining dependency on ISA in acpi-build.c
is iapc_boot_arch_8042() which pulls in in isa.h
in its own header hw/input/i8042.h. Clean up
not longer needed direct inclusion of isa.h in
acpi-build.c

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-36-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/acpi-build.c

@@ -37,7 +37,6 @@
 #include "hw/acpi/cpu.h"
 #include "hw/nvram/fw_cfg.h"
 #include "hw/acpi/bios-linker-loader.h"
-#include "hw/isa/isa.h"
 #include "hw/acpi/acpi_aml_interface.h"
 #include "hw/input/i8042.h"
 #include "hw/acpi/memory_hotplug.h"