Enable DPTF functionality for Meteor Lake Rex board.
BUG=b:262498724
TEST=Booted to OS and verified DPTF entries in ACPI SSDT on Rex board.
Change-Id: I87b2d71650be9ce940d9452bf4a76d4cd1ddba52
Signed-off-by: zhaojohn <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70884
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>