hw/acpi/Kconfig: Add missing dependencies to ACPI_PIIX4

hw/acpi/Kconfig: Add missing dependencies to ACPI_PIIX4

piix4_pm_realize() uses apm_init() and pm_smbus_init(), so both APM and
ACPI_SMBUS are provided by the device model managed by ACPI_PIIX4.

The ACPIREGS are also provided by ACPI_PIIX4, so needs to select ACPI.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20221216130355.41667-5-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>