aml: Update OpRegion to take Aml as offset and length
aml: Update OpRegion to take Aml as offset and length

ACPI Machine Language (AML) Specification defines both RegionOffset and
RegionLen as Term.

BUG=b:194390621
TEST=tools/presubmit

Change-Id: Ib9d09fab3069566e9fc84c823b6d9f644ac975a0
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3845277
Tested-by: Victor Ding <b4a7cab2b204d4052366cc26438aa3555eb3d577@chromium.org>
Reviewed-by: Daniel Verkamp <72bc170b46ec491f7bdd4359a1c0bfed274de40c@chromium.org>
Commit-Queue: Victor Ding <b4a7cab2b204d4052366cc26438aa3555eb3d577@chromium.org>
Auto-Submit: Victor Ding <b4a7cab2b204d4052366cc26438aa3555eb3d577@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm