tests/ide: Free pcibus when finishing a test

Once a test has finished, the pcibus structure should be freed, to
avoid leaking memory and to make sure that the structure is properly
re-initialized when the next test starts.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
1 file changed