Add placeholders for DBG2 reference table for
virt tests and ignore till reference blob is added.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>

---
v3 -> v4:
- added Michael's A-b

v2 -> v3:
- commit msg rewording according to Igor's suggestion and
  added Igor's A-b.
---
 tests/qtest/bios-tables-test-allowed-diff.h | 1 +
 tests/data/acpi/virt/DBG2                   | 0
 2 files changed, 1 insertion(+)
 create mode 100644 tests/data/acpi/virt/DBG2

diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
index dfb8523c8b..1910d154c2 100644
--- a/tests/qtest/bios-tables-test-allowed-diff.h
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
@@ -1 +1,2 @@
 /* List of comma-separated changed AML files to ignore */
+"tests/data/acpi/virt/DBG2",
diff --git a/tests/data/acpi/virt/DBG2 b/tests/data/acpi/virt/DBG2
new file mode 100644
index 0000000000..e69de29bb2
-- 
2.26.3