Add a test for binding of multiple drivers with the same compatible. If
one of the drivers returns -ENODEV the other one needs to be bound.
Reviewed-by: Simon Glass <simon.glass@canonical.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp@baylibre.com>