smbios: Support SMBIOS 3.0 entry point at copy_table()

This will make coreboot code (scan_tables()) and xen code
(xen_biostable_setup()) copy SMBIOS 3.0 entry points if
found.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

src/fw/biostables.c

@@ -618,4 +618,5 @@ copy_table(void *pos)
     copy_mptable(pos);
     copy_acpi_rsdp(pos);
     copy_smbios_21(pos);
+    copy_smbios_30(pos);
 }