gitignore: ignore test-driver

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
ethtool: Report Backplane as supported port

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>