tests/acpi: allow acpi test data updates

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

tests/qtest/bios-tables-test-allowed-diff.h

@@ -1 +1,2 @@
 /* List of comma-separated changed AML files to ignore */
+"tests/data/acpi/aarch64/virt/SSDT.memhp",