Add the soc ACPI _CST table.
The table may be customized to support the different state
combinations and set by the mainboard config.
Tested on deltalake with acpi_idle driver.
Note, intel_idle may not use ACPI _CST table.
Change-Id: I359daa9556edbe263ab0a7f1849c96c8fe1a0da0
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Jay Talbott <JayTalbott@sysproconsulting.com>