Create a common method to add DmaProperty. BUG=b:259716145 TEST=Verified SSDT on google/osiris. Signed-off-by: Kapil Porwal <kapilporwal@google.com> Change-Id: I75b3f22ad29f90f3c3b251bd0d70bae9d75f71fe Reviewed-on: https://review.coreboot.org/c/coreboot/+/70022 Reviewed-by: Subrata Banik <subratabanik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>