I only see one sample with an overlay using the now legacy sda-pin and
scl-pin properties. Move it to the new style.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Update devicetree sources and bindings, switch to new GPIO API. Use
devicetree property name to identify interrupt signal.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>