soc/intel/common: add Kconfig to enable/disable the ACPI PM timer

Currently, the ACPI PM timer state gets set in devicetree by the option
PmTimerDisabled. However, it is not board design dependent. Thus, add a
user-selectable Kconfig option.

Disabling the PM ACPI Timer is only valid when PM Timer emulation is
supported and is only possible, when there is a hardware PM Timer (APL
does not have one for example). SoCs, where the hardware PM Timer can be
disabled must select `PM_ACPI_TIMER_OPTIONAL`.

This new Kconfig gets used in the follow-up commits of this series.

Change-Id: I7f607f277eb14f84a7370ffb25a13226e7ccc917
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45952
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

0 files changed, 0 insertions, 0 deletions