Drop _DSM 5 from expected DSDTs on ARM

diff -rup /tmp/old/tests/data/acpi/microvm/DSDT.pcie.dsl /tmp/new/tests/data/acpi/microvm/DSDT.pcie.dsl
--- /tmp/old/tests/data/acpi/microvm/DSDT.pcie.dsl	2021-08-03 16:22:52.289295442 -0400
+++ /tmp/new/tests/data/acpi/microvm/DSDT.pcie.dsl	2021-08-03 16:22:40.102286317 -0400
@@ -1302,14 +1302,9 @@ DefinitionBlock ("", "DSDT", 2, "BOCHS "
                     {
                         Return (Buffer (One)
                         {
-                             0x21                                             // !
+                             0x01                                             // .
                         })
                     }
-
-                    If ((Arg2 == 0x05))
-                    {
-                        Return (Zero)
-                    }
                 }

                 Return (Buffer (One)

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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

@@ -1,6 +1 @@
 /* List of comma-separated changed AML files to ignore */
-"tests/data/acpi/virt/DSDT",
-"tests/data/acpi/virt/DSDT.memhp",
-"tests/data/acpi/virt/DSDT.numamem",
-"tests/data/acpi/virt/DSDT.pxb",
-"tests/data/acpi/microvm/DSDT.pcie",