This change updates pch_hda.asl to use ASL2.0 syntax. This increases the readability of the ASL code. BUG=none BRANCH=none TEST="BUILD for Volteer" Signed-off-by: Venkata Krishna Nimmagadda <venkata.krishna.nimmagadda@intel.com> Change-Id: Ia2bab6dcbac9eae76ac4258c44bb19425c8b5c80 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41799 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com>