This sample displays the colors red, green, and blue on consecutive
LEDs in an LED strip, moving the starting point where red begins
further down the strip at each time step. The color band wraps around
to the beginning when it reaches the end.
Since this is the first application in samples/drivers to have
documentation, add samples/drivers/drivers.rst as well, and include it
in the top-level toctree from samples/samples.rst.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
Anas Nashif