drivers: display: Add support for LED matrix driven by nRF SoC GPIOs

Add a display driver and the corresponding devicetree binding for a LED
matrix with rows and columns driven by nRF SoCs GPIOs. Such matrix can
be found, for example, in the BBC micro:bit boards.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
5 files changed