bios-tables-test: allow changes in DSDT ACPI tables for q35

bios-tables-test: allow changes in DSDT ACPI tables for q35

We are going to commit a change to fix IO address range allocated for acpi pci
hotplug in q35. This affects DSDT tables. This change allows DSDT table
modification so that unit tests are not broken.

Signed-off-by: Ani Sinha <ani@anisinha.ca>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210916132838.3469580-2-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 9f29e872d5b3973003701401cf659cfb71c95013)
Signed-off-by: Michael Roth <michael.roth@amd.com>