Also add backends/tpm.c to the list of files.
Signed-off-by: NStefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: NMarkus Armbruster <armbru@redhat.com>
Acked-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>